บท 517: Fermat's Last Theorem!

It was really too familiar!

And it became more and more familiar!

Disregarding the noisy crowd and discussions, Zhang Ye moved further away to a place where there was no one. He sat down and quietly opened up the game interface. Then, in the game's merchant shop, he bought a Memory Search Capsule and swallowed it on the spot. His vision blurred and he landed in his sea of memories.

...

Back in his previous world.

He was back in his high school days.