The author should've compromised, given up on the sex for the first chapters or just don't go with the whole "he's like our son" plot line. You can't have both.
Ew... this is just gross. Pedophilia is not a crime just because of the child's body... it's because children are vunerable. "Yuuta" is someone who can't consent to sexual acts fully knowing what it means, and tomohisa is just a disgusting weirdo for taking advantage of that. You can't just fuck the child alter. Why is dissociative identify disorder NEVER treated right in any media? Or they treat like a secret serial killer, or it is extremely fetishised. This is my 2nd experience with some kind of DID in yaoi and I hate them both.