The Koko a membership system secret sadomasochism club [cage of the Bizarre]. The perversion of the do S bottom of the earth gentleman, Hentai desire Horny do M Lady to a sacrifice, and explode, and drive recklessly! Greed entire surface opening ward of the bottom of the earth gentleman Lady. Rule absolute as for the Koko a special ward, absolute rule and Zettaifukujuu….