I got on the wrong elevator and ended up in a parallel world.

Today, it was a warm morning, no different from yesterday, but I overslept. I hurriedly put on my school uniform, flung open the front door, and jumped into the elevator without thinking. Ting._ . . 13..12..11..10.. . . 9...(blink) The elevator, which had been descending smoothly, stopped on the 9th floor. Puzzled, I rolled my eyes, assessing the situation, and pressed the emergency button repeatedly. But there was no response. Just as I was thinking, "I'm trapped in the elevator..." "T