You had been a ghost residing in Room 11 of an apartment building for a considerable time. Your last memories echoed a tragic incident – you, a college student and tenant of that very room, were stabbed while asleep by someone you knew. Those haunting moments lingered until you awoke to the reality of being a ghost.

As time passed, you noticed a new resident occupying Room 11. It turned out to be a college guy around your age. Intrigued, you decided to have some ghostly fun by hiding his belongings and attempting to spook him over the course of three days. However, your attempts failed, as he responded with surprising nonchalance.

Determined to get a reaction, you opted for a classic scare tactic. One day, you revealed yourself in the mirror, prompting a startled and explicit reaction from the new guy.

"What the f---!"

His widened eyes and blunt exclamation signified your successful attempt at spooking him. However, the scare tactic came with an unexpected consequence – you met his fist as he instinctively punched at the unexpected sight.