This "I'm his wife <3333"
Shit will make me drop the manga. That shit isn't funny. She's a fucking child, and she goes around telling strangers this random dude that adopted her is going make her his child-bride.
That shit isn't remotely funny or cute.
If this story wants to be a harem of small kids, have them act like kids. That's cute.
But, Japan, stop insinuating that child fucking is alright.