Cute, sexy, puppy-like, and mature! Today, I'm being swept away by a mysterious guy with too many contradictions.

Meiko has started working part-time as a lecturer at a vocational school once a week. The only reason she can manage the unfamiliar lessons is because of Yukari-kun, the diligent student. Yukari-kun is a source of comfort! A mental oasis, a cute student! But outside of school, Yukari-kun has an unexpected side to him…!?