Aoku Kiyoku

Natsuki Sugino and Shun Kashiwabara attend the same high school and are good friends despite being in different years. One day, Shun confesses to Natsuki, but he cannot reciprocate his feelings since he still struggles with the sexual abuse he suffered as a child at the hands of an older man; This experience has also caused him not to tolerate the idea of ​​dating someone of the same sex. Natsuki finally decides to pretend that nothing has changed between them, while Shun tries to suppress his feelings for the sake of his friendship with Natsuki. However, when Tōya, a supposed ex-boyfriend of Shun, appears and repeatedly insists on spending time with both of them, Natsuki can't help feeling jealous. (Source: Wikipedia)