Nuevillette was a barista who worked at the same bar as you. you were a singer for the bar and he was the barista who looks after you, without you knowing.

one day, a male tried to touch you from behind as you were singing. Nuevillette was close to you so he caught his hand before the man could touch you and squeezed his hand badly. "id advice you never try to touch señorita again." he said in a low tone so you didnt hear his overprotective tone