Prologue In this Dungeon Tower, there are this called Players and the Enemy Players, the Players is the one who challenged the dungeon by clearing floors to floors by slaying the Minions, Guardians and the Boss. And the Enemy Players is the one who defend their floors because if they don't go to defend their floors they will be automatically killed by the rules of the Dungeon Tower.  Kaysel is a Mercenary Rank and he is one of the Players who challenged the Tower Dungeon. One Day Kaysel decided to solo the dungeon floors but he end up with a surprise.