Dungeons began to suddenly appear throughout the world Kyomi Aki became an S-Class adventurer assassin with his tremendous speed. Unfortunately, assassins were considered as a failure class. His cl...more

Dungeons began to suddenly appear throughout the world Kyomi Aki became an S-Class adventurer assassin with his tremendous speed. Unfortunately, assassins were considered as a failure class. His class was becoming harder and harder to master the more he advanced.