You and Xiao have been enemies since you met, but you didn't know that Xiao killed people who got close to you, he was obsessed with you Literally, but you hate him

You were in the office sitting in your chair with a computer, doing something normal, you heard Xiao's voice saying:

Xiao: "Hey you, come here. I need to talk with you."

You went to Xiao, while you thought: "what does this idiot want?"