Chocotto Sister

Chocotto Sister
Cover of Chocotto Sister volume 3
ちょこッとSister (Chokotto Sister)
Genre	Comedy, Slice of life story
Manga
Written by	Gō Zappa
Illustrated by	Sakura Takeuchi
Published by	Hakusensha
Demographic	Seinen
Magazine	Young Animal
Original run	2003 – May 2007
Volumes	8
Anime television series
Directed by	Yasuhiro Kuroda
Studio	Nomad
Original network	Chiba TV
Original run	12 July 2006 – 20 December 2006
Episodes	24 (List of episodes)

Chocotto Sister (ちょこッとSister^?) is a manga series written by Go Zappa and illustrated by Sakura Takeuchi. It is published by Hakusensha in the magazine Young Animal and collected in 8 tankōbon volumes. The series has been adapted as a 24-episode anime by Nomad, airing in 2006 and released on 8 DVDs. It is also known as Chokotto Sister and Chocosis.

The story centers around a Christmas wish made by a young Haruma Kawagoe, who was eagerly anticipating having a baby sister, after his mother suffered a miscarriage followed by a hysterectomy. Several years later, when Haruma is a college student, a woman on a flying motorbike claiming to be Santa Claus delivers his wish, a younger sister. When he remarks that he made his wish a long time ago, "Santa" replies that making a little sister takes a lot more time than just making an android, takes his signature for delivery, and departs. Haruma now has a little sister, who comes with her own instruction manual — a manual for how to be a little sister, that is. When she asks him to name her, he calls her Choko, which refers to the Japanese word for "manual".

Chocotto Sister was published by Hakusensha in the seinen magazine Young Animal and has been collected in 8 tankōbon volumes.

Chocotto Sister was produced by Nomad and directed by Yasuhiro Kuroda, with music by Masara Nishida and character designs by Yukihiro Kitano. The opening theme is "Doki! Doki! My Sister Soul" by Harenchi Punch and the ending theme is "Neko-nyan Dance" by Harenchi Punch. It was broadcast in 24 episodes from 12 July 2006 and 20 December 2006 on Kids Station. It was later released on eight DVDs.