
It's not rape can't you see it, he at least know what'll happen with ex and he doubt his decision in the middle that's why Koichi saw a crack and he push himself to mitsuru and mitsuru just let it with a flow. And after they done mitsuru just make it as if he is the victim when he know deep down he also enjoyed it but regret it later.

it's rape, he raped mitsuru. he didn't want it, he break up with shougo ,because he think he already betrayed shougo so that's why he gave up .but kouchi raped him later.
he enjoyed not because he like it because he is not in his right mind and he just break up with shougo .no matter what that is rape for me
Really sucks... I'm sorry but thenuke deserve it he deserved the suffer and all and I don't think he should be with shougo too.
And shougo to soft too like come on who in their right mind just accept all of that shit that uke brought. At least give some time to accept him back don't just give in. Like just go back suffering with your ex and be weak all your life don't come back with shougo.