Hachiko

She is the student council auditor and a self appointed student council police, who not only functions as student council enforcer but has also appointed herself to be Momo's bodyguard where Tenchi (at first) is often the target of her wrath. Despite of her scary and uptight attitude she can be very helpless to the point where she would cry like a baby especially when she losses her Bokken.

She is also a member of the drama club.

It is suggested that her name was derived from a well known bronze statue of a dog located at Shibuya Station.