Ascribe to Heavenアスクライブ・トゥ・ヘヴン ; 归罪乐园 ; 歸罪樂園 ; Asukuraibu tu Hevun

From Ryuusei no Mafia: Minnie’s the only human living on an alien planet and because of that she’s rejected by almost all the other inhabitants. Then one day something falls outside of her house and it happens to be... a human prince?!