I'm sorry but I seriously can not except that ending. Ao was a really good guy. I can see that he loved him so much that he kept a part of a memory from Kou. Ao always felt that he had to give it back someday, so he always felt guilt & knew that 1 day Kou will dissapear from his side for what he has done. I honestly thought what a messed up guy he is, but I felt simpothy for him as well. What if Kou regained his memory even without the pictures that time? What if destiny was meant to be, Kou & Mikuni were meant to be. What if Kou fell in love with the heart-broken Mikuni that found him again? What if Kou really understood how Mikuni was alone & so worried for him when he thought that Kou cut all ties from him? What if Ao was actually not the person he was supposed to be with? Those are my questions to you all. In my opinion I really thought that Kou was gonna choose Mikuni, but also forgive Ao. That was how I would have liked it to end. Thank you for reading.
Koi No Tsumeato