Yui Shiromaru

Yui has short ash-gray hair and black eyes and she is Nakami and Isaki's Senpai. She's the last member of the previous astronomy club before it got dissolved and the winner in a national high school astrophotography competition. She owns and manages an arcade called "Betty" and she lives right next to it in a modest unit. Yui works at her own pace, and although she is shy, Yui cares a lot about the people around her