How could you look at this manga and see it as pedo shit…
Getting down to a child’s level to talk to them is great and really respectful. Teachers and people working in child care are taught to do that with young children.
She’s “hanging all over him” because she’s a child and she’s really excited to get to know him. I was similar as a child.
The father didn’t want to let them share a room, but she insisted and the mother was fine with it so that she could talk to him about the capital. The mother even checked on them every 30 min to make sure nothing happened. Also, the father was mainly worried because he thought Mc was 18 and closer in age to his daughter, not 27 and a year younger than him. Even then, they still keep appropriate boundaries after knowing his true age.
The author did everything they could to show that it wasn’t that kind of situation. It honestly makes me wonder if you even fully read this manga before making this comment.

They need to stop with that peto shit. That is disgusting, why the f*** is he in that girl's face like that. And why the hell is she hanging all over him.... Her parents let some man they just meant that same day sleep in the same room with their child. This seemed like a good manga until they did this. What the f*** is wrong with these creators did they have to make their main character either a stupid pushover, a pervert who has to have a harem otherwise his dick will fall off, or a goddamn pedophile