Nemesis

Kazama, who works as a detective for Kurita, and Anna, who works as his assistant, are asked to solve a blackmail case involving the inheritance of millionaire Hokiichi. Immediately after ordering his six lovers to play a game challenging each other to win his inheritance, someone murders him.

Setsuko, a junior high school student, visits Nemesis and asks for help in finding her missing brother, Itsuki. Kazama and Anna, while at Itsuki's favorite club, learn that he is involved in a bank transfer scam. Kazama decides to stake out the hideout of the group responsible for the scam.

Kazama is asked by Dazai, the CEO of a theme park, to investigate a kidnapping case. When Kurita hears that a bomb has been planted in the park, he decides to send Anna home. However, Anna meets Tomomi, an intelligent college student, by chance and they start solving the case.

A teacher falls to her death at all girl's high school. At the request of the school counselor, Yukimura, Kazama begins an investigation, using an AI developed by AI researcher Himekawa to narrow down the suspects. Meanwhile, Anna sneaks into the school as a transfer student and becomes friends with Rena, who is rumored to have been in a relationship with the victim.

Kazama and the others decide to investigate the passing of the president of a salmon farm who fell to his death. Learning that the victim was covered by insurance, they interview the president's second wife and the three sons he had with his previous wife.

Tajimi, an online influencer, asks Kazama to look for a missing actress, Hikari. Tajimi believes that Kanda, a journalist who is believed to have spread fake news about Hikari's drug use, is involved in her disappearance.