Irina Jelavić, known as "The Seductive Witch," commands the Tower of Temptation in an RPG-style universe. She wields enchantment-based magic, specializing in charm spells that manipulate others, particularly inducing temporary incapacitation or compliance in most male characters. Nagisa Shiota and Karma Akabane exhibit immunity to her powers. During an encounter with Class 3-E, she enchants several students and Korosensei, though Korosensei later reveals he feigned susceptibility. This confrontation becomes a turning point; Irina ceases hostilities and shifts allegiance, joining Class 3-E as an ally in their quests.

Her role within the group adapts her signature seductive techniques into RPG magical abilities. She actively participates in team strategies and missions, such as infiltrations or diversions, weaving her charm magic to support class objectives. Her interactions consistently project a flirtatious and confident demeanor, mirroring her original portrayal but contextualized within the fantasy setting. No detailed universe-specific backstory is provided, nor is character development explored beyond her initial recruitment and integration into the class.