Valac Clara is a demon student in the Abnormal Class at Babyls Demon School. Lime-green hair cascades in a hime cut, framing matching green eyes marked by three prominent eyelashes per eye, pointed ears, and curled horns. Her red nails and heart-tipped tail complete her demonic features. She wears the standard Babyls female uniform—a red-trimmed white sailor shirt, red skirt, and large red bow—enhanced by personalized yellow pockets adorned with smiling faces. Year-round, her signature green monster slippers, Connor and Murph, cover her feet, switching to boots only in winter.
Clara exhibits intensely energetic, childlike behavior, acting impulsively and disregarding social norms. This eccentricity initially caused peers to view her as an annoyance, leading to isolation. Compensating, she offered snacks as "payment" for companionship, unaware others exploited her bloodline magic for convenience. Self-awareness of her negative perception coexists with a persistent desire for acceptance. Befriending Iruma Suzuki and Alice Asmodeus—who played with her unconditionally—gave her confidence. She ceased transactional friendships, embraced her true self, and formed deep attachments, particularly to Iruma. She displays jealousy when excluded, such as interrupting his time with Azazel Ameri. Initially described as 2% erotic, she later develops romantic feelings for Iruma, raising her "charm power" to 10%.
As the eldest Valac daughter, Clara assists in caring for her younger siblings: Konchi, Kibo, Shinsin, and Ranran. Her father is frequently absent and undisclosed in the narrative, referenced only in songs. Her mother, addressed as "Mommy," oversees the household. Pre-Babyls experiences mirrored her early school life, with peers taking advantage of her abilities without genuine friendship.
Her bloodline magic, "Summon" (Toi Toi), allows replication of any seen item or summoning of any seen person/creature, retrieving them from her skirt pockets regardless of size or weight. Applications range from replicating snacks—which once caused a store ban—to strategic uses like summoning paper soldiers during the Battler Party arc to locate Kirio. She developed "Clara's Toybox," a technique involving a mascot suit that traps targets, regresses them mentally to childhood, and drains their mana through forced play. Physical stamina and agility complement her magic, though she avoids displaying her wings, a noted mystery. Her familiar, Fal Fal (nicknamed "Boss"), resembles her slippers.
Her story begins when she nearly collides with Iruma and Alice during textbook collection. After Iruma agrees to play—rejecting her offered snacks—she overhears students speculating about his motives. His insistence on friendship without compensation moves her, leading her to confront those who exploited her, cementing their trio's bond. Key developments include:
- Achieving Rank Gimel (3) by riding Alice during a flying race.
- Training Iruma for Execution Cannonball and participating alongside him.
- Foiling Kirio's plot during the Battler Party by summoning guides for Iruma, resulting in a Tricky Award.
- Temporarily joining Gaming Battlers after the Magic Apparatus Battlers' suspension.
- Investigating Ameri's personality change with Alice, exposing Elicos Schenell.
- Creating the game "Unjalaka" to secure Orias Oswell's signature for the Royal One petition.
- Partnering with Elizabetta during the Harvest Festival, using her Toybox to drain Iruma's mana. Orobas Coco's "Trauma" magic targets her, requiring rescue by Iruma and Alice.
- Contributing to the "Lilith's Red Carpet" musical, leading to promotion to Daleth (4).
- Participating in the Heartbreaker Challenge with Straw Yabashi but losing to Suzie Stolas.
Clara's relationship with Alice involves rivalry over Iruma's attention, yet they cooperate when necessary. She attends girls' nights with Ameri, Elizabetta, and Keroli Crocell to discuss relationships. She climbs on Sabro Sabnock and is doted on by Lied Shax. She nicknames Iruma "Iruma-chi". Her family shares her exuberant personality except for her serious older brother, Urara.