He is a CHILD spirit, also he keeps repeating that he's a child.
Note: this is NOT a butthurt answer, I actually like shota :)
Don't worry, I didn't take as a butthurt answer...
And I JUST reread the manga....
SORRY, EVERYONE!! FALSE ALARM XD
He was a deity, created for the boy's day festival. But...
When he turned to be human, he didn't look like a child to me.
http://www.mangago.zone/read-manga/kunpuu_tango/mi/mi_chapter-1/23/
I know right（￣へ￣）
People keep saying child rape...
But was the uke actually a child?
I'm just asking here, ya'll don't need to give me butthurt answers :/