xin chào ! It's a bit...complicated because Mikan is really shiny (if I can say so ?) so Ruka and Natsume ended up falling in tình yêu with her. Natsume lives in the dark so Mikan is like his "light" just like Nobara. When Ruka understood that Natsume needs Mikan thêm then he does, he gave up on her but he stills loves her. In the end, both want to protect Mikan,but Natsume always act on his own and it makes his lifespan decreasing, even though he promised Mikan that they would be happy forever together bởi exchanging Alice Stones. So I think that Mian and Natsume are in couple because they made the exchange thing.