Mina

Mina has long black hair and blue eyes. She's seen wearing a light gray outfit. Mina is very prioritized and takes her work seriously, but can also be seen to be pretty jealous of Saya’s friends that take away her sister’s attention from her. Mina is undercover for the Magic Association trying to figure out the sudden rise of criminal activity against witches with the Curio Company being released. She stumbles upon her elder sister Saya, who is tasked with holding the box her teacher gave her to deliver to the association. However, upon receiving a curse from the Curio Company leader, Saya and Elaina switch bodies and the box is opened releasing a gas that reveals people’s true feelings. Mina reveals she likes her sister and is about to kiss her before "Saya" (Elaina) punches her stomach and she goes unconscious.