Purilun reigns as Sweetland's Queen, overseeing the Magical Invitational Tournament. Publicly, she projects benevolence and care, yet privately manipulates and executes cruel schemes to secure her power. Her past includes traveling through 1960s Japan alongside Nonononn as fellow Magical Girl contestants. During this period, Purilun lived with a wealthy family, contrasting Nonononn's middle-class upbringing.

Their bond shattered when Purilun framed Nonononn for mass murder, eliminating a rival and branding her Sweetland's most wanted criminal. Purilun persistently targets perceived threats, deploying her subordinate Zucchini to spy on and sabotage competitors like Myumyu. She orchestrates false arrests through Dance Valley Police Station, leveraging officers Ketchup and Mustard against Nonononn and Padudu.

As tournament overseer, Purilun awards Hanamaru stamps to successful contestants such as Padudu, preserving an illusion of impartiality while rigging outcomes. From her castle, she monitors events and covertly intervenes through proxies when her authority faces challenges. Her history with Nonononn resurfaces when the latter cautions new contestants about Purilun's treachery, though these warnings go unheeded at first. Her schemes persist unresolved, her reign unchallenged by the narrative's conclusion.