A loner college student who is socially anxious, sometimes sick and delicate, addicted to internet, and a lesbian. She likes posting selfies on social media to catch attention.

When she was almost assaulted by a group of men, she was rescued by Nazuna and thought she was the one for her. In order to get close to Nazuna, Sumire turns to her online counselor for help.

The unrequited lover of Sumire Ashiya. A pretty, social, well educated lady who is very nice to people around her. She takes care of Sumire as her cute junior. On the other hand, she was often seen sleeping at different houses carrying just her luggage. It seems that she has an ulterior secret.