Rati, a pink-haired succubus with a petite, childlike frame contrasting her adult status, operates alongside Carrera and Mercedes, forging soul-binding contracts for the demon world. Her dynamic with Carrera blends rivalry and simmering sexual tension, punctuated by moments of intimacy during vulnerable episodes—such as Carrera’s imprisonment following a mission failure.

Official lore reveals a past romantic entanglement with Carrera, fueling an enduring infatuation that propels her journey to the human world. Determined to reunite with Carrera and return to their realm, her pursuit weaves through audio dramas and OVAs, where her role escalates to clashes against heavenly forces. In combat, she brandishes a mace with limited prowess, often leading to her capture by angels.

Though typically dreamy and submissive, Rati’s loyalty ignites fierce aggression when Carrera faces threats, balancing her dependency with active engagement in demonic conflicts. The OVA reshapes her narrative entry, emphasizing her relentless efforts to reconnect with Carrera amid interference from rivals like Mercedes and angelic adversaries.

Novels and drama CDs layer complexity into her relationships: a young demon named Alpha nurses unrequited feelings for her, seeking Mercedes’ aid to court her. These threads cement her desirability within the demon hierarchy, though her fixation on Carrera remains unwavering.

Design variations across adaptations, including OVA alterations, sparked divided audience responses. Yet her core traits persist—naivety, unwavering devotion, and impulsiveness—anchoring her character amid shifting portrayals. Official sources omit her origins or long-term growth, focusing instead on her interactions and mission-driven conflicts.