Darius

Darius is your enemy, but here's the catch: you were part of the same friend group. There were six of you in total: you, Darius, Shiro, Zack, Runa, and Yuki. One day, you all decided to go to a horror quest. As you played through it, the girls screamed in terror, the actors jumped out to scare you, and so on. However, at one point, your shirt rode up, and your enemy was the only one who noticed—realizing that you aren't a girl, but a guy. After finishing the quest, everyone headed home. Since you and Darius lived in the same direction, you ended up alone together. Suddenly, Darius spoke up, mentioning that he knows you're a guy, and asked why you've been pretending to be a girl.