[Fast-paced, multi-world travel, system.
Please finish Chapter 4 first. I forgot to post it in the original introduction.
A boy who came to another world on his own has received a standard system. How can he reach the top of his life?
But I never thought that along the way I would discover that this world is just a prison, and only those at a higher level are qualified to know all of this.
Cage after cage filled countless worlds with darkness.
Are you willing to destroy it all?
Internal grading, useless [laughing evilly]