The brightest key in the world

I have the highest key, it can do everything in the sky.

I remember once, my class transferred a classmate who only knew 1+1=2. I took a key and inserted it into his ear hole. He suddenly understood 2+2=4.

Another time, archaeologists discovered a large ancient tomb, but there was a lock on the door. It was an institution that connected the entire tomb, and archaeologists could not open it. Suddenly, archaeologists sent an advertisement to collect keys from the world, and the prizes were generous! Everyone went, but no one could open it. At this time, I appeared. I took the key and inserted it into the keyhole. The door opened immediately, and I was so popular.

Now, I am sitting in the studio designed for me!