Wow, this is an exceptional omegaverse story. Not perfect, but for what it is, it really stands out. When I see the rape tag, I always assume it'll be the seme raping the uke before they all in love, which I can't stand. Not the case here. In fact, I loved a lot of the characters, including the one who assaulted the uke. I mean, it's the biology of that world, and the character didn't want to do it, even as he was in the act. It was really sad, but I like the way everything worked out. I'd love to see a story just about Hayato and Yuu-chan. I think it's great that he's making his own destiny with the boy he loves.
So yeah, I'd say this is a good option for people who like drama that isn't easily brushed away. There are some awful things that are forgiven a bit easily, but not nearly as easily as typical yaoiland stuff.
Sayonara Koibito, Mata Kite Tomodachi