Tired of the bickering about his life decisions 17 year old Shepherd Highlander finds himself leaving his parents to nearby wilderness. Having finally found some semblance of peace Shepherd is suddenly startled by a voice coming from no clear source or direction. The voice which calls itself Benevolent proclaims "SYSTEM INITIALIZATION" a slew of supernatural events unfolding in its wake.

Now Shepherd finds himself in a peculiar situation. Due to irregularities in his circumstance he's posed with a challenge of sorts by the system, a challenge titled -BOSS TOURNAMENT-. Fighting his way through beast after monster after beast he gains perks other individuals would soon come to covet in this world anew, perks which although great eventually cost him his place among humanity...