Rule N°1: There are 100 worlds.
Rule N°2: Each world contains a breach to reach the next world.
Rule N°3: Progression is linear.
Rule N°4: Death is eternal.
We will wait for you at the top.
Yohan was a victim of war, having died in the midst of conflict.
To compensate from his unjust death, he was given the opportunity to become a World Climber, navigating upwards through the 100 worlds in hopes of one day reaching the mysterious 1st world.