
I know that she grew up in isolation and her emotional development may be distorted, but she is behaving just like a child. This manhwa is smut, this kind of behavior doesn't fit in here. This makes Goblin a bit like pedobear instead of husband. (〜 ̄△ ̄)〜

She went through years of intense physical and psychological torture - hence why she has so many scars. She wasn't even given a name. I think its amazing despite going through all that she still has a sweet and innocent demeanour.
It's probably due to the abuse she regresses to a slightly infantle persona.
The Beginning is really similar to Seijo no Maryoku wa Bannou Desu and not only similar it's practically identical. I like storys like this, so I won't complain tho. ╮( ̄▽ ̄)╭
I read other manga with really similar plot too, so i guess it's just as common as other isekai plot