Although all her attempts to seduce Kosuda have ended in failure, Yamada is determined to make him her first lover. However, the situation between them is becoming awkward as Kosuda - not knowing her true motive - has fallen in love with Yamada, despite her denial that she is also falling in love with him. Her best friend Miharu, noticing what is happening, encourages Yamada's developing relationship with Kosuda, who is given some friendly advise from Miharu's boyfriend.
