Rin Himesato, known as Lilustear, is on a mission to rescue her friend Sumire Hiyama, who has been kidnapped by the evil organization Hamelder. Meanwhile, Kyouko Kishibe, another friend of Rin’s, intentionally gets herself captured by Hamelder to infiltrate their base and assist Sumire from the inside. The clues lead Rin to an abandoned shopping mall, which appears to be Hamelder’s hideout. To rescue her, Rin will have to endure violation by her enemies while doing everything she can to resist succumbing to pleasure.