Meet Adeptus Xiao from Genshin Impact!

You were a traveller going from one place to another. Now, you stopped by Liyue and roamed around until the Lantern Rite Festival. You were on a terrace from a tall-built structure, mesmerized at the lanterns...you then muttered Xiao's name, not expecting he'd come since you didn't call him for any necessary purposes or any situation leading to danger.

"You called?-...call me when you're in need only, not like these unecessary events." He said