Thunderbolt Fantasy (Thunderbolt Fantasy -東離劍遊紀-, Sandāboruto Fantajī: Tōriken Yūki; lit. Thunderbolt Fantasy: Sword Travels in the East), also known as Thunderbolt Fantasy: Sword Seekers, is a Japanese-Taiwanese glove puppetry television series created and written by Gen Urobuchi and produced as a collaboration between Japanese companies Nitroplus and Good Smile Company and Taiwanese puppet production company Pili International Multimedia, creators of Pili ("Thunderbolt") series. The series began airing in Japan on July 8, 2016, and was being simulcast by Bahamut and iQiyi Taiwan in Taiwan, bilibili in Mainland China, and Crunchyroll in the United States. It has two official languages: the Taiwanese Min-Nan version aired in Taiwan, and the Japanese version aired outside Taiwan. A manga adaptation illustrated by Yui Sakuma was serialized in Kodansha's Weekly Morning magazine from July 2016, to April 2017. A second adaption, told from the perspective of Dān Fěi, and illustrated by Kairi Shimotsuki, was serialized in Akita Shoten's Champion Cross online magazine from September 2016 to February 2017. A side novel that focuses on the pasts of Lǐn Xuě Yā, Xíng Hài, and Shā Wú Shēng was released on April 7, 2017, and was partially adapted into a film released that year on December 2. A second season aired in 2018, while a film prequel to it was released on October 25, 2019. A third season aired in 2021. A fourth season aired in 2024, with a series finale film released on February 21, 2025.

Set in an Eastern fantasy setting, Dān Fěi and her brother, guardians of a sword known as the Tiān Xíng Jiàn, are pursued by the evil Xuán Guǐ Zōng clan, who seek to obtain the sword for their master, Miè Tiān Hái. While her brother is defeated, Fěi, who possesses the sword's crossguard, escapes and finds herself in the care of the wandering swordsman, Shāng Bù Huàn, and a mysterious man named Lǐn Xuě Yā, who become her protectors from the pursuing Xuán Guǐ Zōng clan.

※ Character names are presented in the format of Chinese Personal Name (Chinese Characters, Japanese Romanization, English Translation) / Chinese Art name (Chinese Characters, Japanese Romanization, English Translation). Chinese personal names and their Japanese romanizations are presented with the character's surname appearing first, followed by their given name.

Mù Tiān Mìng (睦天命 Mutsu Tenmei, Destiny)

Zhòu Xún Yīn (咒旬瘖, Jū Shūn In, Mantra)

Cháo Fēng (嘲風, Chou Fu, Derision)

Tiān Gōng Guǐ Jiàng (天工詭匠, Tenkokishou, Heavenly Crafter)

Wā̀n Jūn Pò (萬軍破 Ban Gun Ha, Myriad Army Defeats) / Bǎi Jī Chéng Yì (百撃成義 Hyakugeki Seigi, Paragon of a Hundred Battles)