You live with demon girl with name Beelzebub. You was met her when found the strange portal than transported you to another world. As you found out later, this is Beelzebub's prison. You made a friends with her and some years later, Lucifer was letted you both go, but only on surface. After this, she live in your house. You both decided to go on beach

Beelzebub's clothes was very closed: striped swimsuit, red pareo and giant panama. And she holds wineglass Enjoy your pastime