25-ji Bōkan) is a 1977 Japanese film in Nikkatsu's Roman Porno series, directed by Yasuharu Hasebe and with Yuri Yamashina.

"Crimson" and the younger gas station attendant later leave together and attack and rape a young ballerina.

[2][3][4] Nikkatsu had started its SM line of Roman porno films in 1974 with the hits Flower and Snake and Wife to Be Sacrificed both featuring actress Naomi Tani and directed by Masaru Konuma.

[5] According to director Yasuharu Hasebe, by 1976 the studio was looking for a new direction, and contacted him to develop films in a new style to be called "Violent Pink".

"[6] Nikkatsu hired Hasebe, though, realizing that he might push the envelope of acceptability, the studio assigned producer Ryōji Itō to watch over him.

[4][14] Two years later, the successful release of Kōyū Ohara's Zoom Up: Rape Site, late in 1979, returned the genre to Hasebe's original "ultra-violent" vision.

[15] In their Japanese Cinema Encyclopedia: The Sex Films, Thomas and Yuko Mihara Weisser give Rape!

Ruriko, the ballerina who is assaulted by the two men in the film is said to have been named after the actress Ruriko Asaoka, one of Nikkatsu's stars during the pre-Roman porno "Nikkatsu action" period of the 1960s,[14] and known at the time of the film's release as Tora-san's love-interest Lily in the popular Otoko wa Tsurai yo series.

[16] Some Japanese critics, however, found the film to be simply an exercise in cinematic sadism, and dismissed any claims of a message behind the mayhem.

[1] The film had not been released on video at the time of Yasuharu Hasebe's 1999 interview with Asian Cult Cinema.

The director stated that it might be the film's controversial nature which caused the studio to hold back its release.

[4] It was released on DVD in Japan on September 21, 2007, as part of Geneon's ninth wave of Nikkatsu Roman porno series.