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Umi no Manimani
Umi no Manimani
from Wikipedia
"Umi no Manimani"
Reflection of fireworks on the water surface
Single by Yoasobi
from the EP Hajimete no – EP and The Book 3
LanguageJapanese
English title"Manimani"
ReleasedNovember 18, 2022
GenreJ-pop
Length4:15
LabelSony Japan
SongwriterAyase
ProducerAyase
Yoasobi singles chronology
"Shukufuku"
(2022)
"Umi no Manimani"
(2022)
"Adventure"
(2023)
Music video
"Umi no Manimani" on YouTube
"Manimani" on YouTube

"Umi no Manimani" (海のまにまに; lit. "at the mercy of the sea") is a song by Japanese duo Yoasobi from their EPs, Hajimete no – EP and The Book 3 (2023). It was released as a single on November 18, 2022, through Sony Music Entertainment Japan, as the third song from the short story collection project Hajimete no after "Mr.", and "Suki da". The song was based on the story Yūrei, written by 147th Naoki Prize-winning Mizuki Tsujimura.

Background and release

[edit]

On December 1, 2021, the same date as their EP The Book 2 release, Yoasobi announced the project Hajimete no, a collaboration between the duo and four Naoki Prize-winning novelists: Rio Shimamoto, Mizuki Tsujimura, Miyuki Miyabe, and Eto Mori, to produce songs based on the authors' novel under the theme of "a story to read when you do [something] for the first time". All novels were published as a book on February 16, 2022, titled Hajimete no.[1][2] One of four novels written by Tsujimura is Yūrei (ユーレイ; lit. "Ghost") with the theme "a story when you first run away from home". It is about a middle school "I" who runs away from home and arrives at a seaside town. She meets a mysterious girl who holds bouquets of flowers at the beach at night.[3]

On November 6, 2022, Yoasobi began posting a series of Stories via their pop-up store Tabi Suru Honya-san Yoasobi Gō's Instagram account, teasing a snippet of "Umi no Manimani", based on Yūrei.[4] Followed by numerous texts from the based novel, the last story announced that the song would be released on November 18.[5] To commemorate the release, billboards of 400-character handwritten reading impressions of Yūrei were placed inside the Tokyo Metro subways and at Shibuya Station between November 7 and 13. Japanese voice actor Shin'ichirō Kamio, actress Tao Tsuchiya, YouTuber Bunkei, singer Momoko Gumi Company (Bish), comedian Nishida (Lalande), and sociologist Noritoshi Furuichi are in charge of writing the impressions.[6] All billboards were later featured in the single's teaser video, uploaded on November 15.[7] A music video for "Umi no Manimani", directed by Asuka Dokai, premiered on March 21, 2023.[8]

"Umi no Manimani" was later included on Yoasobi's EPs Hajimete no – EP and The Book 3, released on May 10 and October 4, 2023, respectively.[9][10] The English version, "Manimani", appeared on their third English-language EP E-Side 3, released on April 12, 2024.[11]

Composition

[edit]

"Umi no Manimani" is a medium-tempo track written by member Ayase, expressing "the mood change of the protagonist who runs away from home to the mysterious world of the beach at night, which is the main worldview of the story."[12] The song was composed in the key of D major, 98 beats per minute with a running time of four minutes and 15 seconds.[13]

Other uses

[edit]

"Umi no Manimani", its visual, and its based story were adapted into an exhibition called Immersive Museum Yoasobi – "Umi no Manimani" ga, Dekiru Made at Bellesalle Shinjuku South Exit from July 10 to September 8, 2024.[14]

Credits and personnel

[edit]

Charts

[edit]
Chart performance for "Umi no Manimani"
Chart (2022) Peak
position
Japan (Japan Hot 100)[15] 68
Japan Digital Singles (Oricon)[16] 7

Release history

[edit]
Release dates and formats for "Umi no Manimani"
Region Date Format Label Ref.
Various November 18, 2022 Sony Japan [17]

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
"Umi no Manimani" (海のまにまに, lit. "At the Mercy of the Sea") is a single by the Japanese pop duo , released on November 18, 2022. The track was composed by Ayase with and vocals by ikura, following the duo's signature style of adapting prose fiction into . It serves as the third collaboration in their "Novel into Music" project with award-winning authors, specifically based on the "Yuurei" (lit. "") by Naoki Prize-winning , drawn from her 2023 anthology . The song explores themes of loss, escape, and ethereal connection to the sea, narrated from the perspective of a girl confronting her inner turmoil and a spectral presence. Included on Yoasobi's third EP Hajimete no – EP (2023) and their compilation album The Book 3 (2023), "Umi no Manimani" achieved commercial success, peaking at No. 7 on Japan's Oricon Digital Singles Chart and its official music video has garnered over 19 million views as of November 2025. The animated music video, directed by Asuka Dokai and Osato and produced by studio KIKO, premiered on March 21, 2023, and depicts a dreamlike journey of a young woman fleeing into a nocturnal coastal landscape haunted by ghostly visions. This visual complements the song's atmospheric production, featuring swelling synths, rhythmic percussion, and ikura's emotive delivery, earning praise for its evocative storytelling and emotional depth. An English version, titled "manimani," was released on April 12, 2024, as part of the EP E-Side 3, with its music video premiering on November 8, 2024, expanding its global reach.

Background

Development and inspiration

"Umi no Manimani" originated as part of YOASOBI's collaborative project titled "," announced on December 1, 2021, which paired the duo with four Naoki Prize-winning authors to create original short stories centered on "first experiences" that would then be adapted into music. The initiative aimed to explore pivotal life moments through and , with Ayase and vocalist ikura transforming the narratives into tracks released sequentially throughout 2022. The song draws direct inspiration from "" (), a by included in the project's anthology of the same name, published by Suirinsha on February 16, 2022. In Tsujimura's tale, a girl runs away from home intending to end her life and arrives at a remote seaside station, where she encounters a mysterious girl amid an eerie coastal atmosphere marked by isolation and subtle elements. This narrative captures the essence of a "first runaway," blending themes of escape from personal turmoil, profound loneliness, and enigmatic seaside mystery. Ayase handled the songwriting, meticulously adapting "Yūrei"'s emotional core by composing melodies, harmonies, and soundscapes that evoke the protagonist's journey of fleeing to the ocean's edge and her transformative meeting. The initial concept emphasized the raw vulnerability of running away for the first time, translating the story's introspective tension and coastal solitude into a that mirrors the girl's and fleeting sense of freedom.

Announcement and promotion

On December 1, 2021, Yoasobi announced the "Hajimete no" project, a collaboration with four Naoki Prize-winning authors—Rio Shimamoto, Mizuki Tsujimura, Miyuki Miyabe, and Eto Mori—to create short stories themed around "first experiences," which would serve as the basis for new songs. This initiative was revealed alongside the release of their EP The Book 2, marking the duo's expansion into deeper literary-musical integrations. As part of the project's rollout, the four original stories were compiled into a book titled Hajimete no, published by Suirinsha on February 16, 2022. The volume included Tsujimura's "Yūrei," the narrative inspiration for "Umi no Manimani," allowing early access to the source material that would later inform the song's themes of ethereal longing and introspection (as detailed in the development section). Promotional efforts for the book emphasized its role in the ongoing collaboration, with excerpts shared to build anticipation for the forthcoming tracks. Leading up to the single's release on November 18, 2022, initiated targeted hype-building activities. Starting November 6, the duo posted a series of Stories on their official pop-up store account, "Tabi Suru Honya-san Gō," featuring audio snippets of the track alongside excerpts from "" to tease the title and narrative connection. These digital previews were complemented by physical advertising, with billboards displaying promotional visuals for "Umi no Manimani" in stations and from November 7 to 13, 2022, highlighting the song's release date and tying back to the "" literary origins. This multi-channel approach effectively bridged the project's roots with the impending musical output, engaging fans through both interactivity and urban visibility.

Music and lyrics

Composition

"Umi no Manimani" is classified in the genre, incorporating medium-tempo ballad elements that contribute to its emotional depth. The track is composed in at a tempo of 98 beats per minute and runs for a duration of 4 minutes and 15 seconds. Ayase handled the , utilizing a piano-driven that transitions into ethereal synth layers to mirror the shift from urban confinement to seaside liberation. These production techniques emphasize the story's themes of escape and discovery, aligning the sonic evolution with the protagonist's emotional journey.

Lyrics and themes

The lyrics of "Umi no Manimani" were written by Ayase, the and producer of , and center on a protagonist's solitary journey toward the as a form of escape from everyday life. This narrative arc draws directly from the "Yūrei" by , part of the 2022 novel collection , which explores "the first time you run away from home" through a girl's impulsive departure and arrival at a seaside town. In the song, the protagonist sways in the amid passing scenery, evoking urban isolation and a sense of detachment, as seen in the opening lines: "As if snapping between the nights / I swayed in the running / I sat down, by myself / And watched, and watched, the scenery flowing behind." As the journey progresses, the lyrics shift to themes of ghostly upon reaching the beach, where the encounters a mysterious girl in a white dress under the moonlight, mirroring the novel's depiction of an unexpected seaside meeting that blurs reality and otherworldliness. Key verses illustrate this mood transition, such as the arrival at the "night sea" led by crashing waves, transitioning from confined windows to open liberation on the shore, where the pair lights barefoot, symbolizing fleeting joy and release. This imagery adapts elements from "," including the "first time running away" motif and evocative seaside settings like a nighttime plaza with laid-out flowers, heightening the ethereal, introspective tone. The overall theme revolves around surrender to the —"at the mercy of the "—as a for emotional release and acceptance of transience, culminating in the protagonist's contemplation of disappearance at dawn and leaving their body to the waves, reflecting the novel's exploration of mystery and personal . These elements enhance the song's mood of quiet , complementing its without overt visual references.

Music video

Production

The music video for "Umi no Manimani" was directed and storyboarded by Asuka Dokai and produced in an style by the Kiko. Key staff involved included key animators such as Masaki Hayano and Takanari Hirayama, who contributed to realizing the visual elements aligned with the song's seaside ghost . Production occurred over several months, aligning with the song's digital release on November 18, 2022, followed by the official premiere on March 21, 2023. Stylistic choices focused on fluid techniques to evoke a sense of ethereal movement, enhancing the thematic essence of the track without delving into specific narrative depictions.

Synopsis and animation style

The music video for "Umi no Manimani" by follows the story of a girl named Umi, who runs away from home after enduring severe at school, intending to end her life by the sea. Arriving at a seaside town via train at night, she encounters a mysterious girl named Nodoka on a misty beach, initially suspecting her of being a due to the ethereal atmosphere and subtle hints, such as an unnamed ghostly figure tied to Nodoka's backstory. Through their interaction, marked by shared vulnerability and a sense of connection, Umi begins to find solace and hope, mirroring the song's about fleeting emotions, damp fireworks, and surrendering to the sea's whims. This narrative closely adapts the original short story "" by , emphasizing themes of loneliness, unexpected bonds, and subtle otherworldliness. The animation employs a hand-drawn 2D style with an analog touch to evoke the fragile, introspective mood of the source material, blending realistic character movements with surreal, dreamlike sequences. Directed by Asuka Dokai, the visuals incorporate detailed that mixes traditional cel animation for emotional close-ups with subtle CG enhancements for expansive environments, creating a fluid sense of motion in transitional scenes. Ocean and beach depictions feature soft, diffused lighting and hazy textures reminiscent of watercolor washes, heightening the surrealism during ghostly encounters and nocturnal reflections. Key visual motifs include flowing trains symbolizing escape and transience, with carriages rocking gently against passing nightscapes; misty beaches shrouded in fog and illuminated by faint , underscoring isolation and ; and ethereal figures like Nodoka, rendered with elongated silhouettes and translucent glows to suggest their otherworldly presence. These elements recur to parallel the lyrics' imagery of swaying in the dark and barefoot wanderings, building emotional resonance without overt exposition. Running approximately five minutes, the video synchronizes its pacing with the song's medium-tempo rhythm, using cuts and fades to align pivotal plot beats—such as the initial train journey and the revelation—with vocal swells and builds, thereby amplifying the lyrical themes of surrender and quiet .

Commercial performance

Chart performance

"Umi no Manimani" debuted on the at number 68 for the chart dated December 5, 2022, marking its peak position on this comprehensive ranking that incorporates sales, streaming, downloads, radio airplay, and video views. This entry reflected the song's initial impact following its digital release, driven primarily by download and streaming activity in its first full tracking week. On the Weekly Digital Singles Chart, the track reached a peak of number 7 for the week ending November 20, 2022 (published November 28), based on digital download sales during the period from November 14 to 20. The performance was bolstered by strong initial download numbers, aligning with YOASOBI's established digital presence. The song did not achieve notable positions on international charts such as global or lists, remaining primarily a domestic success within .
Chart (2022)Peak position
68
Oricon Digital Singles7

Sales and streaming

"Umi no Manimani" was released as a digital single on November 18, 2022, contributing to YOASOBI's portfolio of successful digital releases. The track was later featured on the limited-edition EP – EP, which debuted at number 9 on the Oricon weekly singles chart in May 2023. The official for the , released on March 21, 2023, has amassed over 19 million views on as of November 2025. While specific digital download figures for the single are not publicly detailed, the track's streaming has been solid but more modest compared to YOASOBI's blockbuster hits; for instance, "Idol" surpassed 800 million cumulative streams by August 2024. No RIAJ certifications have been awarded to "Umi no Manimani" for digital sales or streaming as of 2025.

Adaptations

Exhibition

The Immersive Museum – "Umi no Manimani" ga, Dekiru Made was an interactive art exhibition held at Bellesalle Shinjuku Minamiguchi in , running from July 10 to September 8, 2024, with sessions daily from 4:30 p.m. to 9:00 p.m.. Produced in full collaboration with , the installation allowed visitors to trace the song's origins from its source Yūrei by through to its final form, emphasizing the duo's creative workflow involving composer Ayase and vocalist ikura.. The exhibition was structured across multiple rooms featuring hands-on elements that recreated the production process, such as displays of early drafts, storyboards illustrating , and unreleased audio demos of the track's development.. Immersive projections simulated seaside environments inspired by the song's themes, with video and sound installations enveloping walls and floors to evoke the narrative's ethereal, ghostly motifs from .. Visitors could engage further in an interactive zone where AI-generated ukiyo-e-style portraits tied personal details like hometowns to the , and optional video creation stations (for an additional fee) linked individual experiences to the song's words.. A dedicated in the final room synchronized lighting on visitor bracelets with the music, fostering a collective sensory climax.. The experience centered on the haunting themes of loss and connection in , using audio-visual setups to immerse participants in ikura's vocal recording sessions and Ayase's compositional insights, bridging and music without relying on live performances.. Complementing the installations was a themed café and merchandise area offering items like aqua-colored sodas and tumblers evocative of the song's oceanic imagery.. As part of the broader Immersive Museum series, which has drawn over 600,000 visitors since 2022, the exhibition garnered positive reception for its innovative blend of technology and artistry, enhancing fan engagement with the song's backstory through , multi-sensory storytelling..

English version

The English-language adaptation of "Umi no Manimani," titled "manimani," was released on April 12, 2024, as a track on 's third English EP, E-Side 3. This version reimagines the original song's composition while shifting the lyrics to English to broaden for international audiences. The lyrics for "manimani" were translated by Konnie Aoki, preserving the core themes of transient journeys, , and fleeting connections from the original while refining the phrasing for idiomatic English flow. Ikura provided the vocals, delivering a performance that echoes the emotional depth of her Japanese rendition, accompanied by a musical arrangement closely mirroring the original's upbeat electronic elements and rhythmic drive. As part of 's broader strategy to engage global listeners, "manimani" contributes to the series, which translates select tracks from their Japanese catalog to support international tours and streaming growth.

Release history

Single release

"Umi no Manimani" was released as a digital single on November 18, 2022, by the Japanese music duo through . The release marked the third single from their short story-inspired project , available exclusively in digital formats including streaming on platforms like and , as well as high-quality audio downloads. The single's cover artwork depicted serene seaside imagery, aligning with the song's thematic elements of coastal escape and fluidity. The rollout emphasized global accessibility, with immediate availability across international digital stores and streaming services outside Japan, facilitating worldwide listens from day one. Initial marketing efforts included a promotional teaser video shared on November 15, 2022, building anticipation ahead of the launch. At this stage, the single featured only the original Japanese-language version, produced by Ayase with vocals by ikura.

Album inclusions

"Umi no Manimani" subsequently appeared on several extended plays and albums by following its initial single release. The track was featured as the second song on the EP Hajimete no – EP, which was released on May 10, 2023. In this collection, it follows "SEVENTEEN" and precedes "Sukida," maintaining its original composition without alterations. Later that year, "Umi no Manimani" was included on the album , released on October 4, 2023, positioned as the fourth track. Here, it appears after "" and before "Mister," as part of a compilation drawing from prior singles and EPs. An English-language version titled "manimani" was released on the EP E-Side 3 on April 12, 2024, serving as the fourth track. This adaptation follows "Mister" and precedes "The Brave," adapting the lyrics for international audiences while preserving the core melody.
ReleaseDatePositionNotes
Hajimete no – EPMay 10, 20232Original Japanese version
The Book 3October 4, 20234Original Japanese version
E-Side 3April 12, 20244English version as "manimani"

References

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