When a doctor is found dead and the company's exclusive data on a cancer drug is missing, detective Takayama and Oshita are called to the Nakamitsu pharmaceutical laboratory. However, a bungled attempt to catch the murderer leave Takayama and Oshita reassigned to the lackluster task of patrolling public bathrooms to keep them out of trouble.

Haneda, the president of a company dealing in gold, is shot to death on the Raicho 9 limited express from Osaka to Kanazawa. Detective Kamei begins an investigation in cooperation with the Fukui Prefectural Police. In the Green Car, Detective Nishimoto had noticed a beautiful woman talking to the victim just before he was killed. Looking into her background, she turns out to be Yumiko Miura, living in Setagaya in Tokyo. An eyewitness who claims that she is the murderer also appears, and she is taken into custody. Before long, the victim's unexpected relationships will be revealed one after another...

A Tokyo psychiatrist is hoping to better his career by marrying the daughter of a prominent doctor. The match is threatened however when an attractive but very troubled tourist guide comes to him for consultation...

After completing his journey of self-discovery through Osaka and Kyushu, Ryū Shimaoka (played by Yasukaze Motomiya) returns to his hometown of Awaji as a fully-fledged yakuza. With the backing of Hosono, a senior member of the Yamagami-gumi, Shimaoka and his youthful comrades form the Kyōkotsukai and align themselves with the powerful Okada-gumi, which controls the island. As Shimaoka rises rapidly through the ranks, tensions flare when the rival Kurosaki-gumi brings in a dangerous outsider from Kobe, shattering the fragile peace that once divided the island. This is the gripping story of a man born and raised in Awaji, who walks the path of the yakuza to protect his home, and the turbulent life he leads!