Sei syndrome

Sei Syndrome is when one simp very hard for a Genshin Impact character, to the point they start saying the character's name every day. Some signs of having Sei Syndrome is that you might fall in love with someone easily only because they have the character you like, on some occasions, people with Sei syndrome don't admit they are in the LGBTQIA+ Community.

Person 1: Xiao
Person 2: That is the 46th time you've said that you have Sei syndrome for sure. Please take a break.