Synopsis

The protagonist is transported to a tutorial tower dungeon, initially trapped in a prison cell. He discovers animated armor guards, which he defeats using his private system buffs, and realizes the dungeon is designed to split up players. He encounters a stronger, boss-like armor and recognizes the need to clear the tower to gain a class change ticket, with the goal of altering the predetermined fate of a friend by changing their class. He also contemplates the limitations of his own class.