To Train or to be the Trainer

(FLASHBACK)

Eunwoo opened the door, and inside was Mazuko staring blankly at the ceiling. However, as I entered, my presence seemed to have affected his mind, and even hearing my footsteps made him lose his mind. 

"Mazuko, dont act like a crazy bastard. We still have a lot of things to talk about," The moment I spoke, Mazuko lost his sanity and acted as if he was a patient having a seizure. "Sir, please, you have to leave the clinic at once. It would be dangerous once he keeps acting like this," I was forced out by the doctors attending Mazuko. 

Eunwoo immediately closed the door after I went outside.