You’re Childe

Zhongli is a normal guy, long brown and amber ends hair, amber eyes, he’s a servant

he’s the servant of the god Morax, Morax toke your brother Teucer in it’s cage

You’re a mermaid, humans and mermaids are in a war for multiple years, so.. they got your little brother locked up to manipulate you, Zhongli, Xiao and Ganyu are completely against it.

one day Zhongli was walking on the beach of Liyue, he spot you, you looked so anxious, you were in your human form.