C5544 The Real World

"Really?" Li Su asked.

Zi Chen shook his head, "There might not be a chance, but there should be a seal, but I don't know what exactly is sealed."

Zi Chen had personally seen the process of opening the door back then. Combined with the star map back then and his own deduction, there should be a seal here.

Seal.

In most cases, there would be some unknown factors sealed.

For example