Sooo there's this manga 4 students the mc has a crush on their friend, that 4 students had sex in of their homes like poly sex idk whats that called the mc has this kink of ntr.. when he saw his crush got fucked by his friend he got a hard on and thats that, he cant confess to his crush and in the end they didnt end up together she tell him about her sex life and its ok with the mc. I HOPE U GUYS GET IT HUUHUHHUUH