They're alive, but as you can see Natsune and Yamabiki take their own path and leaving earth (maybe) instead of living with Ie and Kazu. I think it's because they both are not normal human and they would be an object of fear to the community (i bet they are immortal) , if so then they will just make Ie and Kazu in danger then? Nobody want the history to happen again and everyone would just kill them cause Natsune is a 'unlimited meat supply' for the monster so do Yamabiki...?
Urm, my brain just can't stop crying. I can't use it well, so maybe i'm just blabbering nonsense. If so, I'm sorry.
Well I don’t think I can continue reading this but I just want to know, are all the three boys Ie, Natsune and Yamabiki alive or dead ╮( ̄▽ ̄)╭