I remember this manga about a little girl alien who comes to conquer Earth. She has bunny ears and a bird and psychic powers and stuff. She gets picked up by this guy who acts as her dad and tries to teach her morals and stuff. He's got a crush on a kindergarten teacher so he enrolls her as a student there...I don't remember the name though ;(

Jinrui o Metsubou Sasete wa Ikemasen?

Yeah that's it, thanks!