Karin

A gyaru elder sister who works as an assistant at an apparel shop. Frank personality.

Loves her younger brother, but doesn't say it usually. Dislikes men apart from her brother.

Because her brother is an unreliable weak child, occasionally meddles too much in his matters.

"It cannot be helped. Let's have you sleep together with your elder sister after a long time. Hey, turn off the lights and come here."