Appearing before Kurumi Azuchimomoyama, Devilun is an angel whose physical form mirrors a Tasmanian devil rather than a traditional angelic figure. He bestows upon Kurumi the power to transform into the warrior Prima Pink, also known as Prima Angel, and charges her with battling the malevolent organization Darkness Whales. Notoriously foulmouthed, Devilun exhibits an alternate "awakened state" where his speech turns uncharacteristically sweet and verbose. This angel displays a knack for computer proficiency and sustains himself by consuming wild rats and crows. As the story progresses, Devilun expands the Prima Angels team by recruiting additional warriors: Mizuki Sangenshoku as Prima Cyan and Mikan Unshuehima as Prima Orange. Throughout Season 2, he maintains his role in enabling the magical warriors' fight against Darkness Whales, without any notable evolution in his character or backstory beyond his established function. Across the series, Devilun consistently acts as the initiator and supervisor of the magical girls' activities, with no additional insight into his origins or motivations.