Break up with your Husband

Shouta takes in a temporary Student that's under the protection of the American Hero Commission. Only thing is this student is the child of an old "acquaintance"/ Ex , and he starting to regret what he said 15 years ago. She used to be his and his alone, they're love went way back. At the end they didn't work out and she had gotten married and had a child. Basically moved on, he did the same at least that's what he thought. Logically he needed to change that. That ring on her finger didn't mean shit to him. (black fem oc)