Ep. 1: Five girls awaken in a windowless mansion, initiating a deadly survival game.

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Yuki opens her eyes in an unfamiliar bed inside a windowless Western-style mansion, wearing a classical maid uniform. She is not alone; five other girls have already arrived and remain confused by their sudden imprisonment. Yuki breaks the tense silence by asking if this is everyone’s first time. This question marks the beginning of a lethal contest where the participants must play a deadly game that threatens their lives. The narrative focuses on the immediate shock and the grim reality of their situation as the deadly game commences.