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Character:

One of the main heroines of the story, she is the childhood friend of Takumi, and has been with him ever since they were both in the orphanage. She has a habit of meaning entirely the opposite of what she usually says, a fact only Takumi seems to be aware of. It was revealed that Takumi was the unwitting inspiration for this habit. She works at the Stray Cats as a part-time job. When she's angry, she tends to shout "Die twice already!to the poor soul who incurred her wrath. In addition, Takumi is the unfortunate recipient of much of her violent outbursts, ironically it being him who taught her that.

Source from Wikipeida