Koyomi Hare Nanaka

A dimensional security enforcer that came from Seiren in order to complete a mission for Miharu's older sister, Maharu. She is completely afraid of men and will dig a ditch to hide herself in. She is very timid, but she soon becomes good friends with Yukinari and Kirie. But when Kazuhara comes around, she goes into a complete panic attack.

She is a master of ping pong. She is the reigning champion on seiren.