A wolf has arrived at this academy. Akane Himura, a second-year high school student and a member of the Discipline Committee, is a popular girl loved by everyone in school because she is serious yet honest, small, and cute. One day, the Principal asks her to be the tutor for Ren Oogami, the daughter of the Board Chairman. Since Akane has a goal of going to university as a scholarship student, she decided to accept this task. However, Ren has a physique several sizes larger than hers and, moreover, is a trouble child with a cunning mind...!? A Girls Comedy by a tiny and cute Senpai and a big and tough Kouhai starts now!!