Deborah is a prominent student at Micro-Grand Academy and the second-in-command of the school security force, SMAT. She holds strong feelings for Murakata, the SMAT captain, and frequently engages in highly theatrical displays of affection towards him. These interactions feature exaggerated romantic declarations accompanied by absurdly explosive special effects and dramatic backdrops, serving as a parody of similar tropes in romantic anime. Deborah perceives Hinano as a rival for attention, especially from Murakata and other students, leading to jealousy-driven conflicts. Her SMAT role involves maintaining academy security and order, often collaborating closely with Murakata on missions.

She operates within a comedic framework where her romantic pursuits and rivalries are consistent elements. Her personality and relationships do not undergo significant evolution or backstory exploration. Her primary narrative function revolves around the ongoing romantic comedy dynamic with Murakata and the situational humor from her interactions, particularly with Hinano.