Character profile
Hatsumi Mieno
三重野 初実Souka
Biography
Mayuki's maid. Mayuki once said that Hatsumi is always in a hurry to find him in the house that she trips over her own feet, which she will subsequently let out an outrageous scream. (Source: Wikipedia)
Story spoilers
It is later revealed that she is one of the two "dolls" that Seiran controls. when in her aya or doll form she fights using her hair as a whip.
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