Family Court Probation Officer, Akira Yamanobo

Akira works as a lawyer. One day, he meets with his former client Rie, who asks Akira to perform a background check on her late husband Daisuke.

Michiko Oshitani, who lived in Shiga Prefecture, is found dead at an apartment in Tokyo. She was strangled to death. Mutsuo Koshikawa is the owner of the apartment and he goes missing. Detectives including Yuhei Matsumiya who is a cousin of Detective Kyoichiro Kaga , have difficulties in solving the case. They can't find a connection between Michiko Oshitani and Mutsuo Koshikawa. They soon learn that Michiko Oshitani came to Tokyo to visit Hiromi Asai . They graduated from the same school, but there isn't a connection between Hiromi Asai and Mutsuo Koshikawa. Detective Yuhei Matsumiya finds something near Michiko Oshitani's body. That something has the names of 12 bridges surrounding the Nihonbashi area of Tokyo. Detective Kyoichiro Kaga learns of the clue and becomes agitated. There's a connection with his late mother

When a tycoon passes away, he unexpectedly leaves the family fortune to outsider Tamayo on the condition that she marries one of the grandsons, pitting blood against blood.

Ran’s secret past revealed! Ten years ago, something happened between her mom and dad. Now, plagued by nightmares, Ran is starting to remember… Meanwhile, a murderous card dealer breaks out of jail to seek revenge. His target: Ran’s father. Can Conan stop him in time and save his girlfriend’s family?

The erotic novelist Taeko is writing a morbid story of a family destroyed by incest, murder and abuse. Her assistant, Yuji, sets on a mission to uncover the reality of this story, but the reality might be too much to bear.