Responses
i don't think that's how it works. if he doesn't eat, he loses his mind, so i doubt they will grow old happily together...
That's not what I meant. The mangaka seems quite inventive, so anything can happen... and I don't want to create restrictions for thinking.
Oh! If Kuuchi loses his immortality, it would be great if they will be able to grow old together. And somehow I know that Motoki will protect him until the end. :-)