As a fellow BMas, you should get what I mean!
​As Chiaki's interest in Hana grows beyond her bountiful chest, the two's relationship attracts the attention of Akira, Chiaki's cousin and mentor in all things bosom-related. But while Akira professes to be a true boobmaster, her dirty secret is that she's a breast virgin who's never touched another pair! As she desperately seeks to discover how her student managed what she could not, Chiaki tries to keep her rival aficionado from coming into contact with Hana!