Marina, a high school girl who was living with her brother, continued to live together after her brother got married and brought in a wife named Akari. One day, she becomes awkward when Akari tells her that her brother is cheating even though he is newly married, but Marina is also cheated on by her boyfriend. The two of them get closer and closer as they comfort each other. Akari was originally bisexual, but she had sealed it away when she got married.
I Energy
