Uyu Ritsuki

 (兎遊 りつき), formerly known as Hiiragi Ayumu (柊木あゆむ) and Uyu (うゅ), is a formermember of 13-Gatsu no Asterisk, BLACK SNOW, OXYGENLOVER and mush uuuuup!!!.

He joined BLACK SNOW on April 15, 2021.