Ayumi, the tutor, is a bit of a gyaru but she's kind and extremely beautiful! However, because she always wears loose-fitting clothes around her chest, her nipples can be seen peeking out from her ill-fitting bra. Shinichi, a student who couldn't stand it anymore, ...!? Beautiful, small-breasted actress Ayumi Sakurai becomes a tutor in a loose bra, unknowingly seducing her student! A piece dedicated to those with a loose bra fetish!