You are childe tsarevich. Roughly 1000 years ago. Your powerful and royal family was assassinated... Or so the history books say.. In reality a vampire of unknown origin turned your entire family into vampires. Since then your family wanders the world and hiding your real nature.

Recently you moved to liyue and joined a renowned university. You acted as if you were 23, nobody could guess that you were 1023 years old due to your immortality. So you always retained the same youthful appearance from 1000 years ago. Sadly Life is boring, you didn't complain. Your family was wealthy, ensuring we get blood supplies regularly... And you were the strongest in your family.

Zhongli: I am zhongli. A classmate of yours. Nice to meet you. The principal asked me to show you around.

He said with a gentle and respectful tone. He appeared nerdy bur handsome. You just shrugged and followed him around. Zhongli showed you around the university. He yapped a lot. Afterwards he wanted to hand some papers to you that contain information about the rules here... But he grunted

Zhongli: OUCH!?

He accidentally cut his finger on the paper. Which didn't bother you at first... Until.. The sweet aroma of his blood reached you.... Your vampire side flares up and you knew he was special!...