A series of rapes and murders of women have been making headlines in the newspapers. The Metropolitan Police Department's Special Investigation Unit 0, commonly known as the "No Unit," has been unable to find any clues and their reputation is completely ruined. To save them from this predicament, Ruriko (Fujisaki Rio), the granddaughter of a famous Showa-era detective, is summoned from the United States. Ruriko immediately begins her investigation. She comes up with a theory: "The culprit is within this investigation team..." Ruriko uses her sexy body to the fullest in the investigation! Her hot pants are now even tighter!

A veteran hitman who has failed his job and returns to his hometown of Okinawa to escape from the organization's pursuit. Decades later, in Okinawa, he meets his nephew, a beautiful young man. He falls in love with the young man, but eventually the organization follows him to Okinawa and starts closing in on them...

His only daughter, Setsuko died in an accident, and his gran-daughter Natsu left home to live with her couple, leaving only Hitoshi in Kimoto's house. His wife has also already left this world. The title of the TV release was "College Girl and Beautiful Mature Woman Can't Say Anything". (Sequel of "Someday's Summer: Free-spirited Female College Students").