The Viper Brothers (1971)
The Viper Brothers: Up on 30 Charges

The Viper Brothers: Up on 30 Charges
Overview
Part 7 in a long running (8+1 films) action/comedy/melodrama series about a pair of short tempered, amoral, but not evil chinpira (Bunta Sugawara and Tamio Kawachi) thinking too big of themselves. Katsuji finds his long lost mother, who is a rich lady of a respectable family. Comedy and melodrama ensue. A thrilling spectacle with an overly violent ending, and a remarkable, Japan's only post-prison rape comedy, Masa is determined to have sex with the female guard, despite the fact that there is a bar between them. Michi Azuma (topless swordswoman from Lone Wolf and Cub: Baby Cart in Peril) plays a tomboy who wants to join her brothers.
Similar
Big Shots Die at Dawn (1961)
Detective Bureau 2-3: A Man Weak to Money and Women (1963)
Ichi the Killer (2001)
Japan's Most Chivalrous (1966)
Jirocho Rises in Fame (1952)
Tokyo Decadence (1992)
Falcon Rising (2014)
Wicked Priest 2: Ballad of Murder (1968)
Branded to Kill (1967)
The Tale of Zatoichi (1962)
The Tale of Zatoichi Continues (1962)
Dead or Alive 2: Birds (2000)
The Rule for a Vagabond (1965)
Dead Angle (1979)
The Clan's Heir is a Trans Woman (2013)
House of Gamblers (1970)
Music Box (1989)
Painful Bliss: Final Twist (1977)
Kill or Be Killed (1966)
Yakuza vs. Gang Leader (1974)