When the head of the touring magician's group "Magical Fantasy" is murdered on a train while on his way to Hokkaido, young Kindaichi, who also just happens to be on board, is fast on the case to find the culprit. But just as quickly as the case unfolds, the body disappears only to be rediscovered again, along with other new bodies.

In the past, Kurumi Usushima (Yuto Nakajima) wanted to become a ballerino, but he is now a detective. Kurumi Usushima and his senior detective, Takao Washio (Masahiro Takashima), solve a case by using the hypnosis technique past life regression.

The eighth shogun, Tokugawa Yoshimune, fights against evil rampant in Edo while blending in with the common people as Tokuda Shinnosuke, the third son of a poor samurai retainer, commonly known as "Shin-san". The story depicts Yoshimune, who is shaken by the issue of succession, the drama within Edo Castle, and a difficult case involving a conspiracy that occurs in the castle town, with the addition of new characters and a sense of the era.

A fierce battle unfolds between a vigilante who exacts justice on unjust criminals and the police who pursue him. The story then leads to a shocking conclusion... This story will make you ask yourself, "What is justice?"

A young man transported back to the colorful chaos of old Tokyo witnesses firsthand the larger-than-life dreamers who turned a stretch of carnival stalls into Japan's greatest entertainment district.