滝沢 茉奈

A third-year student who moves into the attic space directly above Yukito and Yuuya's room. Garrulous and friendly to all who earn her trust. She warns Yukito about the dangers of demotion to C class and possesses surprising knowledge about the school's security system and patrol routes taken by the teaching staff.

 Shortly after she joined the Academy as a first-year student, her roommate and best friend Negishi Shouko (根岸　祥子) disappeared shortly after Mana witnessed an altercation between Shouko and Kajiyama. Mana then spent the next two years investigating the school grounds, the teaching staff and the isolated C-block for clues on the whereabouts of her friend. Her personality also changed from shy and withdrawn to proactive and  confident just like her best friend. After she meets Shirase, she is granted the power to time-travel into the past. After much experimentation the time-travel power could be exploited to change the past but was not without restrictions. Using the power gives Mana severe migraines during the process. Her witch seal is on her thigh. /

Yukito observes Mana and Yuuya get along very well together because of the former's propensity for teasing  and the latter's timid personality.