Misumi Tozawa, known in the world of Sword Art Online as Mito, is a student at the Aeterna Girls' Academy and a classmate of Yuuki Asuna. She is a girl who loves video games and was one of the one thousand beta testers for Sword Art Online. She encouraged Asuna to play the game with her on official launch day, and on November 6, 2022, both became trapped in the death game alongside over ten thousand other players. In the real world, she is academically gifted and consistently earns top grades, but she struggles to maintain close friendships and often finds herself alone. After being trapped, she initially forms a party with Asuna, using her beta knowledge to help Asuna level up quickly. However, during an encounter with a group of aggressive plant monsters on the first floor, Mito panics when Asuna’s health drops dangerously low. Believing Asuna to have been killed, she disbands their party and flees, an act that fills her with overwhelming guilt. Following that incident, Mito becomes one of the Clearers, a group of frontline players dedicated to defeating the game’s floor bosses in order to escape. In the events of Sword Art Online the Movie - Progressive: Scherzo of Deep Night, set on the fifth floor, Mito is still haunted by her earlier failure. When Kirito and Asuna attempt to recruit her for a raid to prevent a destructive conflict between the two leading guilds, Mito refuses due to her lingering shame and disappointment in herself. She operates on the fringes of the main group, continuing to fight as a powerful scythe-user. During the climactic fifth-floor boss battle, she makes a surprise appearance to rescue Asuna when the boss seizes her, proving her loyalty and desire for redemption. Her arc in the film centers on her struggle to move past her guilt and reintegrate into Asuna’s life, culminating in a tentative reconciliation. Mito’s primary relationship is with Asuna, defined by past trauma and a slow rebuilding of trust. She also maintains a distant, respectful rivalry with Kirito. As a former beta tester, Mito is highly skilled, excelling in both combat and game mechanics, and her weapon of choice is a scythe. Her motivations evolve from raw survival to a deeper need to atone for her past mistakes and to protect those she once abandoned.