Kodomo no Jikan

Daisuke is a 23-year-old novice teacher who takes charge of a third-grade class after its previous teacher quits. Among his students is Rin Kokonoe, a mischievous girl who behaves like a grown-up in some ways. Rin is described as a “masegaki” and as having a tsundere nature, though she is more affectionate than aloof. The story follows Daisuke as he begins teaching the class and gets to know this troublesome student.