Zett first appeared in-game, selling illegal magic potion to Caesar. Questioned by the MC, Zett told her that he was a private contractor and has had a permit to be in Gedonelune Royal Magic Academy, however, as revealed by Gedonelune newspaper, Zett was a wanted criminal that was infiltrated in the academy grounds, selling illegal magic tools taking advantage of the panic from a "war" that could come between the Gedonelune and Queensblade Kingdoms.