Azamaru Sena

Sena is a kouhai of Makoto and the others by one year.

She looks like a gyaru, but she used to be more of a delinquent, so she has an athletic personality. She is also good at fighting, and often acts before she thinks.

She mistakenly believes Makoto is somehow tricking or blackmailing Hinare and Asuhi, and gives him a beating without even hearing him out. After the misunderstanding is cleared up, she grows fond of Makoto, but at the same time she also seems to switch between seeing him as a senpai she respects and a paisen she can look down on.

In the past, she experimented with sex out of admiration for Hinare and Asuhi, but it didn't feel as good as she expected, so she has lost interest. However, having sex with Makoto brings her to discover the true pleasure of sex...