ماساکو ناتسیومای

A strange woman who is usually seen arround Kanba and serves as an antagonist.

She possesses a laser sighted slingshot that fires red balls which erase memories and also owns a penguin just like each of the Takakura siblings, which she names Esmerelda. She appears to be an old admirer of Kanba and seems to be the in same situation as him, as her brother Mario is also under the influence of a penguin hat similar to Himari's and to ensure his survival she also must retrieve Ringo's diary.

[Spoiler: It is later revealed that she is Kanba's twin sister.]