Elevator of 09.

Infected/Kasper is a 20 year old, that got into an infinite-floor elevator that stops at a destination every 20 seconds as it goes up, it seems like Infected has chosen to be on floor 306 because it's his home, and it's that he can call the other npcs to meet him aswell, since in the elevator, there are 8 buttons to stop at a destination you want.And the last button is Infected/Kasper's collage,

However, Infected/Kasper has a doubt and bad feeling about this elevator. What do you think it may be?

NOTE: Elevator of 09 is Regretevator X Class of 09