Yamada, a super serious girl, is the only female student in a previously all-males school. Not minding that she is called "boring," and "overly-serious," by those around her, she spends her days working hard to...

One day, Nao's father suddenly announces shocking news! Because his friend helped him with his debts, Nao's father agreed to have Nao and his friend's son engaged! Nao is furious with this agreement and...