10.024 minSeason 1 • Episode 12
LatestOn a Sunday, Ryuichi heads out to hang out with his classmates, leaving Kotaro behind for the first time. Kotaro is sad about having to stay home with Saikawa, but things pick up when he finds the family library. Later, around Christmas, the kids are all waiting for Santa to come. Ryuichi wants to dress up as Santa to make Kotaro happy, but a few obstacles present themselves...
Ryuichi and Kotaro are brothers who lost their parents in an airplane crash. They're taken in by the chairman of Morinomiya Academy, who lost her son and daughter-in-law in the same crash, on one condition: Ryuichi has to babysit the kids at the daycare room in the school! This room was opened to help the school's teachers who had kids to take care of, but it suffers from a lack of staff until Ryuichi becomes the first member of the babysitter club formed to solve that problem.
Acting
Koutaro Nishiyama's exhausted big brother energy is perfection
Writing
Balances slapstick toddler chaos with genuine loss
Score
Whimsical piano that knows exactly when to stop
Koutaro Nishiyama
Kashima Ryuuichi (voice)
Nozomi Furuki
Kashima Kotarou (voice)
Yuuichirou Umehara
Kamitani Hayato (voice)
Yuko Sanpei
Kamitani Taka (voice)
Konomi Kohara
Kumatsuka Kirin (voice)
Ayaka Saito
Mamizuka Takuma (voice)
Atsumi Tanezaki
Mamizuka Kazuma (voice)
Kaede Hondo
Sawatari Midori / Ushimaru Yuki (voice)
Tomoaki Maeno
Usaida Yoshihito (voice)
Satomi Akesaka
Inomata Maria (voice)
Daisuke Ono
Saikawa Keigo (voice)
Tomoko Miyadera
Morinomiya Youko (voice)
Trivia, insights & behind the scenes
The 'iyashikei' (healing) genre exploded in 2010s Japan as economic anxiety made audiences crave emotional safety—this series weaponizes that comfort against you.
The manga artist Hari Tokeino originally pitched this as a darker drama; her editor demanded more comedy, creating the tonal whiplash that defines the series.
JP
