Mio Shizunai

Mio Shizunai (静内 みお) is the major protagonist of Magi Kuni Diary: Beyond Walls.

Personality
Despite her looks, Mio is a tomboy, no-nonsense and tough older sister to her sibling who she wishes to protect her fragile younger sibling by herself. She looks controlling, but she does that in a place of love. She is an orphan that has to take her responsibility to a next level, making herself as a "mom" to her younger siblings.

Mio is more of a rival to Maeco, rather than Kaaya herself. She hates the idea of Maeco still striving, even though Maeco still has her own struggles. Mio believes that she does not work very hard enough so that she reaches her limit, while Mio countlessly fails to reach what she believes she wants to be.

Aside from her rudeness and a short fuse, she is a protective friend that will swear on her life to safe someone, and even though she does not enjoy crowds, she likes when someone small talks her even though it's going to end up awkward.