Chitoge Kirisaki
She's Onodera's childhood friend and fiancée—though that engagement was totally arranged by their parents without either of them having a say. Onodera definitely doesn't take it seriously. She's genuinely into him, and when she actually confessed her feelings, he turned her down pretty hard, saying he was already in love with someone else. Now he basically sees her as a sister, which. yeah, has to sting.
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