Manga Life
The official website of "Manga Life" announced on December 10, 2013 the anime adaptation of "Oneechan ga Kita". Produced by C2C, the three-minute-long anime series is directed by Yoshihide Yuuzumi and the characters are designed by Takeshi Oda. The first promotional video was released on December 16, 2013, which revealed the main cast and staff. Crunchyroll began to simulcast the series when it premiered in Japan on January 8, 2014. The thirteenth episode was bundled with the Blu-ray release on March 22, 2014.