Overview
The first volume of the novel was published by Shueisha under their Super Dash Bunko imprint December 2009. As of September 2011, eight volumes have been released.
As a trivia, the author of the series also wrote Mayoi Neko Overrun!, his debut work.
A manga adaptation drawn by Youhei Takemura started its run in the September 2011 issue of Jump Square. An anime television adaptation is currently airing for the 2012 Winter Anime slot.
Synopsis
Yuuta Segawa, a college freshman just starting a new life in the School of Literature of Tama University, is unintentionally tasked with the responsibility to take care of his sister's 3 daughters - Sora Takanashi, Miu Takanashi, and Hina Takanashi. 2 of the daughters (Sora and Miu) are not blood related to Yuuta as the daughters are from Yuuta's brother-in-law's previous marriage.
Currently, both his sister and her husband are missing, left with their 3 daughters under Yuuta's care.
Characters
Main character
Yuuta Segawa (瀬川 祐太 Segawa Yuuta)
Voiced by: Wataru Hatano
The main character of the series. A college freshman just starting a new life in the School of Literature of Tama University. His parents passed away when he was young. As such, he was raised by his sister, Yuri. He has a bad impression with his sister due to her decision to marry a man who has two daughters from a previous marriage. But he took the responsibility and take the 3 daughters in as their guardian due to their parent's disappearance.
Takanshi sisters
Sora Takanashi (小鳥遊 空 Takanashi Sora)
Voiced by: Sumire Uesaka
The eldest of the three sisters. Sora Takanashi is a 14 years old second-year student in middle school. She has a tsundere personality, and refers to Yuuta as "Onii-chan". While her grades and her academic performance are excellent, she is however bad in cooking.
Miu Takanashi (小鳥遊 美羽 Takanashi Miu)
Voiced by: Eri Kitamura
The second eldest of the three sisters. Miu is 10 years old and attends elementary school as a 5th grader. Her biological mother has a Russian lineage. She is the one of the sisters who addressed Yuuta properly as her uncle (family position wise). She is mischievous, and has preferences to guys who are older than her.
Hina Takanashi (小鳥遊 ひな Takanashi Hina)
Voiced by: Hiromi Igarashi
The youngest of the three sisters. Hina Takanashi is currently 3 years old and attends kindergarten. She is the only biological daughter of Yuri hence directly related by blood to Yuuta. Friendly and unafraid of strangers, She normally addresses Yuuta as "Oji-tan".
Street Observation Research Society
Raika Oda (織田 莱香 Oda Raika)
Voiced by: Yui Horie
A second year student of Tama University School of Literature. A very good cook in Japanese cuisine. Hardly show emotions and doesn't talk easily, but show a totally different attitude once she encounter cute things.
Kouichi Nimura (仁村 浩一 Nimura Kouichi)
Voiced by: Daisuke Ono
A good friend of Yuuta, and extremely loves girls so much to the point he almost never stays at his own home and instead spends time frequently at Yuuta's place.
Shuntarou Sako (佐古 俊太郎 Sako Shuntarou)
Voiced by: Junji Majima
The president of the Street Observation Research Society. A lolicon and wears thick glasses.
Segawa/Takanashi Family
Yuri Takanashi/Yuri Segawa (小鳥遊祐理/瀬川祐理, Takanashi Yuri/Segawa Yuri)
Yuuta's sister, the step mother of Sora and Miu, and the biological mother of Hina. An independent woman who used to take care of Yuuta alone. Currently she is missing along with her husband. She used to live happily with her daughters.
Yoshiko Sawara (佐原よし子, Sawara Yoshiko)
Yuuta and Yuri's aunt. A widow who supports Yuuta along with the girls. A person who hates losing. Though strict, but she is also gentle at times.
Shingo Takanashi (小鳥遊信吾, Takanashi Shingo)
The eldest in the Takanashi family, and also the father of Sora, Miu, and Hina (all biological). He is currently missing along with Yuri.
External Link
Anime Official Site (Japanese)
