学園ベビーシッターズ (Series) favorite_border

[DeepL Translation - needs review] Introduction to Volume 1: Ryuichi and his little brother, Torataro, lose their parents in a plane crash. The two are taken in by the head of Morinomiya Academy, but the head's condition of exchange is that Ryuichi will babysit in the school's nursery! What will Ryuichi do against the powerful babes? A very popular story! School "child-rearing" scramble★!

(Translator: DeepL)