The Hibino brothers have a missing sister. She is Shintarou's younger twin. She went missing when they're 8, and no one knows where she is now. Junta is unaware of this.
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The Hibino brothers have a missing sister. She is Shintarou's younger twin. She went missing when they're 8, and no one knows where she is now. Junta is unaware of this.
