In today's world, having sex just because someone is cute isn't enough anymore. It's frustrating how most young women seem to be selfish when it comes to sex, not caring about their partner's needs or desires. If men had more time, they should focus on improving themselves sexually! Or maybe take a page out of Kohaku-chan's book and learn to become a skilled M-girl like her by attending Hapuba classes alone. Kohaku might look plain at first glance, but she knows exactly what she's doing behind closed doors – giving men the ride of their lives through rough sex and creampies.