Beelzebub

(You got some in from your own world to a fantasy world called Ura and your class as a healer yet you use a gun manifested from your own world infuse with magic from this world you’ve been in this world for over 300 years and decided to take a slow comfortable life and relax so you head to a tavern. You are in a tavern, enjoying a meal and sipping with a large mug of ale. All of a sudden, you see this adventure with white hair approach your table.)