Misora Kasuga attends Mahora Academy as student number 9 in Class 3-A. She possesses ash brown or ochre hair, brown or olive eyes, stands 162 cm tall, and has measurements of B78-W57-H78. Her birthday falls on April 4, 1988, and she has blood type A. An energetic member of the track and field club specializing in short-distance sprints, she maintains a running rivalry with classmate Asuna Kagurazaka. Misora exhibits a hyperactive, tomboyish personality counterbalanced by laziness towards non-athletic responsibilities; she dislikes remaining still and often avoids special missions demanding sustained effort. She frequently wears a crucifix and sometimes appears in a nun's habit due to her duties at a local church, where Sister Shakti supervises her chores. This church connection ties to her concealed identity as a Ministra Magi and mage-in-training, a role she tries to hide from classmates despite obvious hints. She trains magically alongside Takane, Mei, and Negumi, downplaying her abilities and expressing reluctance about her magical heritage. Childhood stories from her parents instill a particular fear of the dark mage Evangeline. Her pactio artifact, "Joculatrix Monachans" (Amused Nun), manifests primarily as sneakers granting superhuman running, jumping, wall-scaling, and water-traversing abilities. She dismisses its combat utility, noting its effectiveness mainly for evasion. Alternate depictions show the artifact as an iron cross enabling divine communication. Misora also knows minor illusion spells, though her overall magical proficiency remains limited due to inconsistent training. During the Mahora festival arc, tasked with investigating Chao's plot to expose magic, she discovers a robot army beneath the World Tree. Her mage identity is accidentally revealed to Asuna during this mission, though Misora unsuccessfully denies it. She later aids Asuna and Setsuna's escape using her artifact and participates in the festival's final conflict, where Cocone sacrifices herself to protect her. After the festival, disguised as a priest, she overhears classmates' confessions at the church, earning divine punishment from Sister Shakti for eavesdropping. Traveling to the magic world on vacation intending to visit Cocone's hometown, she becomes stranded when interdimensional portals are destroyed. During Cosmo Entelecheia's attack at the Governor's Ball, her human status enables her to wield magic when others cannot. She escapes with Mei and Takane via Mana Tatsumiya's assistance and later joins the group traveling to the Ostia ruins, continuing to deny her mage identity despite universal awareness of it. In the *Anime Final* movie, she appears during events surrounding Negi Springfield's need to choose a permanent pactio partner before the class's magical memories are erased. The *UQ Holder!* spin-off confirms a descendant, Mikan Kasuga, who appears as a nun in the Tokyo Slums.