Hasegawa Aria

Reina's childhood friend. She is a cute pretty girl who is innocent and shows interest in everything. In fact, she has a strong convictions that let her think for herself and speak her mind.

She is not good at social group interactions, which women are typically good with. She is aware that she is not well-liked by people of the same sex, and she is concerned that she does not fit in.

She is happy to see her childhood friend Reina, whom she has met again. She likes the fact that she can be open about her sexual exploits with her. Her feelings for Reina go beyond that of friends.

She has been having sex with various guys she trusts until she meets Reina again. The current guy she is having sex with is the protagonist, and she is crazy for him.

It just so happens that the protagonist is Reina's boyfriend, and her interest in him increases dramatically.

When it comes to sex, she believes that it is an essential activity between for men and women to know each other. She really wants to have a threesome with Reina and the protagonist.