Mahiru Hyūga (日向 まひる, Hyūga Mahiru?)
A girl from the Hyuuga family who is infatuated by Kyouhei. She consider herself and Kyouhei as the best Seki of their respective families, thus want to marry him and chased him to the city. She's Koushiro's cousin and she has been a Seki since she's younger than Kyouhei and Aki, thus more experienced in controlling her Doll, Magatsuhi.