Toriyama Koharu

 is a former bandmate of Asahi Rokka. Her band nickname is "TRICK" (トリコ), which came from her name Toriyama Koharu. She played bass and was in charge of making small items. She has long hair tied at the back.

She supported Rokka's decision to move to Tokyo and sent her off on the day of Rokka's departure.

Etymology
Toriyama (鳥山): Tori (鳥) means "bird", while Yama (山) means "mountain". It can also be used to describe the phenomenon where seabirds flock near the surface of the sea after seeing small fish.

Koharu (小春) means "late autumn".

Card Cameo
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