LF doujin wholesome black guy proposes to MILF

Ok, so this particular hentai has the basic formula for a NTR hentai manga, except it's actually wholesome and there's no NTR involved at all. I think it has multiple parts? I don't really remember. All I can remember is the MILF is a single mom, who needed help with something in her apartment. So she asks help from her next door neighbor... And it escalates from there. In the end, the guy proposes and they actually have a wholesome ending. Guy became a great husband for her.