Yosuga no Sora

Yosuga no Sora (Japanese: ヨスガノソラ; lit. "Sky of Connection") is a Japanese romance drama eroge visual novel developed by CUFFS ("Sphere"). The game was originally released for Windows on December 5, 2008. It was adapted into a serialized manga and an anime television series. A sequel/fan disk titled Haruka na Sora was released on October 24, 2009, containing new and expanded scenarios for several characters from the original game.

Tragically orphaned by a car accident, the Kasugano twins travel to their grandparents' countryside residence in Okukozome via railcar, hoping to reconstruct the shards of a shattered life. These two lonely souls, physically alike yet spiritually divergent, are unaware of the challenges these conflicting expectations will unveil in the coming days. Uncertain of the future, Haruka Kasugano clings to memories, hoping to find the strength he needs to protect his ailing sister. As the tale develops, it tells four stories, each with one girl: Kazuha Migiwa, rich but kind; Akira Amatsume, polite but sad; Nao Yorihime, depressed but hopeful; Sora Kasugano, petite but fierce.

The game was originally released for Windows PC on December 5, 2008. A sequel/fan disk titled Haruka na Sora was released on October 24, 2009. It contains full scenarios for Kozue and Yahiro, an expansion to Sora's story from the original game, and additional bonus material.

Yosuga no Sora was adapted into a 12-episode anime series that aired on October 4, 2010. Each episode consists of a 22-minute feature segment and a 3-minute omake segment. The anime's main plot is presented in a multi-arc branching format that independently tells the stories of Kazuha, Akira, Nao, and Sora while sharing certain common episodes. The title of each episode incorporates the names of the characters it concerns. The bonus segment focuses on Motoka's story, relying more extensively on humor and super deformed character designs. Each segment has its own ending credit sequence in each episode. The anime's opening theme is "Hiyoku no Hane"-(比翼の羽根) by eufonius, and the ending themes are "Tsunagukizuna"-(ツナグキズナ) by Nekocan feat. Junca Amaoto, and "Pinky Jones"-(ピンキー・ジョーンズ) by Momoiro Clover.

The first volume of the series was released by King Records for DVD and Blu-ray Disc formats on December 22, 2010, and the final fourth volume was released on March 26, 2011, with a limited edition Blu-ray Disc, including the stuffed toy strap of Sora Kasugano.

The series premiered on Toku in the United States on December 31, 2015.

(In parentheses are the episode numbers for each arc, e.g. (A3) is the third episode in Akira's arc. Legend: A-Akira, K-Kazuha, N-Nao, S-Sora.)

There are five drama CDs: two released with the purchase of the original visual novel Yosuga no Sora from stores Sofmap and Messe Sanoh, one released with the pre-ordering of its Fan Disc Haruka na Sora, and two released with the purchase of the Blu-ray volumes 2 and 4 of its anime adaptation.