

After losing both parents in a fatal plane crash, teenager Ryuuichi Kashima must adjust to his new life as the guardian of his younger brother Kotarou. Although Ryuuichi is able to maintain a friendly and kindhearted demeanor, Kotarou is a reserved toddler still too young to understand the reality of the situation. At their parents' funeral, they are approached by Youko Morinomiya, the stern chairman of an elite academy, who decides to take them under her care. However, there is one condition Ryuuichi must fulfill in exchange for a roof over their heads and enrolment in the school—he must become the school's babysitter. In an effort to support the female teachers at the academy, a babysitter's club was established to look after their infant children; unfortunately, the club is severely short-staffed, so now not only is Ryuuichi responsible for his little brother, but also a handful of toddlers who possess dynamic personalities.

Ryuuichi Kashima
Koutaro Nishiyama

Kotarou Kashima
Nozomi Furuki

Hayato Kamitani
Yuichiro Umehara

Taka Kamitani
Yuko Sanpei

Kirin Kumatsuka
Konomi Kohara

Aharen-san wa Hakarenai

Minami-ke

YuruYuri: Happy Go Lily

A Couple of Cuckoos

ReLIFE

Rainbow Days

Place to Place

WATATEN!: an Angel Flew Down to Me

Haganai: I Don't Have Many Friends

Akebi's Sailor Uniform

The Yuzuki Family's Four Sons

Seitokai Yakuindomo

Girlfriend, Girlfriend

Tonari no Seki-kun: The Master of Killing Time

Lucky Star