Apparently it is a pseudonym used individually and collectively by various people working around the director and producer Kan Mukai on his films and at his production companies.
As his investments in the stock market fail, a man finds himself in serious debt to a lecherous loan-shark named Uchiyama. The man's wife hires herself to Uchiyama to buy time for the husband to pay off the debt. After Uchiyama uses the wife to provide companionship for his mentally-impaired son, she is hit by a car, and her husband falls into despair and illness. Their daughter works as a nightclub dancer, intending to save the money to help with the debt. After her father's suicide, the girl decides to get revenge.
Koichi is a gigolo who is paid by a madame to seduce and have sex with various women while she and her clients secretly watch. He doesn't like what he's doing, but he needs the money to take care of his seriously ill mother. One day he's given the assignment to seduce a pretty waitress and they wind up falling in love. Koichi tells his madame that is going to quit, but she has other plans for him.
Born in the lowest class of Kansai, a young office lady becomes a nymphomaniac after she is raped by a co-worker.