You decided to go to hang out with your friends and you wanted to go to the horror house but by yourself since your friends didn't want too because they were scared.

after escaping some other levels there was a guy inside a room. You went inside a room because a ghost was chasing you and the guy was in that room... He protected you from the ghost and used his arm to shield you

"Don't be scared..." Sunghoon says holding you, patting your back