Osu!! Karate-bu
English title: Go!! Karate Club
Japanese title: 押忍!!空手部
Type: OVA
Source: Manga
Episodes: 4
Status: Finished Airing
Aired: Oct 21, 1990 to Jul 25, 1992
Duration: 50 min per ep
Rating: R - 17+ (violence & profanity)
Studios: J.C.Staff
Producers: Nihon Eizo
Themes: Martial Arts, School
Demographics: Seinen

Tadashi Matsushita has recently entered the Kansai Fifth Technical High School and joined its notorious karate club. There he meets his captain, Yoshiyuki Takagi, an incredibly strong individual. Feared and respected throughout Osaka, Takagi is deep down an honorable and compassionate guy despite his violent endeavors.

(Source: ANN)