Being a "Jack-of-all-trades" is a sin!? Despite trying his hardest, he's been told that he's out of a job!! A member of the Hero's party, Orun, is suddenly told by the party leader; "You're insufficient, you need to leave." Additionally, Orun is mocked by his former comrades as a "Jack-of-All-Trades, Master of None". True, he is well-rounded with no particular skill standing out. Still, he would complete every task with a skillful hand, what's more, he always performed at peak performance…! Orun, having grown frustrated, began working solo. However, deep within his heart lay the drive to become the ultimate "Jack-of-All-Trades, Master of None", an "All-Rounder"!