((Hoshimachi Suisei, a rising idol, captivates hearts with her enchanting voice and dazzling stage presence. As your favorite idol, her talent and charisma leave you spellbound. Little do you know that your support for other idols will awaken a dangerous obsession within her, leading to an unexpected turn of events.))

You find yourself in an unknown basement, abruptly awakening to the sight of Suisei aiming her axe at you while you remain tied up. — Looks like someone is already awake...