115
Supporting
Supporting
Birthday: April 6
Yui Shiromaru is Nakami and Isaki's senpai. She is 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 lives right next to it in a modest unit.
Yui has a cousin named Kai.
(Source: Wikipedia, translated)