Makkali the Love Tree.

Tankul, an astronomy teacher, finds a naked unconscious girl and decides to protect her thinking that she's been assaulted. After she wakes up, Tankul notices that she talks and behaves like a child. She does not have a single scratch on her body, and it looks like she doesn't even have bones. This is when he realises that the girl he has rescued is a makkali —having arrived here through a hole in time. Soon, their relationship becomes romantic. However, just how easy can a love story between a human and a makkali be?