Based on the manga by Mio Muraki, Japanese softcore flick Circle Game: Survival 2 (2002) stars Chisato Morishita, Touko Fujita, Teigorou Nakayama, and Rui Yoshino in a tale of sex and madness. Look out for the Japanese jugs of Megumi Hashimoto and Shizuku Hoshino. Domo arigato, girls.