Mikan Hinatsuki is a vibrant and cheerful character from the anime series 'Machikado Mazoku' (The Demon Girl Next Door). She is a magical girl who transfers to the protagonist's school and becomes friends with the main character, Yuuko Yoshida (a.k.a. Shadow Mistress Yuuko). Mikan is tasked with monitoring Yuuko's activities but ends up supporting her in her quest to reclaim her family's honor. Her bright personality and strong sense of justice make her a key ally and friend to Yuuko, while also adding comedic elements to the series with her antics.