Kurea Aoki
She's Kurea's older sister, currently a third-year high school student at a private school out in the countryside. She's not great with people and tends to struggle in social situations.
She's claimed to Claire that she killed their parents, framing it as something she did for Kurea's sake. According to her account, their parents were fundamentally bad people—their father was a public figure on a strict diet but was secretly engaging in all sorts of illicit behavior, while their mother was having an affair with a younger coworker at her company.
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