Young Kindaichi's Casebook - Season 6

Hajime learns about the medical students' secret past while the others search the facility for a rabies vaccine.

One of the men goes missing after another victim is found. Hajime and the others discover a hidden staircase while looking for the missing man.

Hajime solves the final riddle Watanabe left behind and reveals who is truly responsible for the murders. Hajime reveals that his classmate Senke is the murderer and explains that he had used various tricks to kill the medical students. Hajime reveals that the dying message that Watanabe left behind which was a melon, referred to the person who had the highest number in their name meaning Senke.

Akechi had taken part in a classical band ten years ago, and he played as the violinist. During the performance, Reona Kirishima got killed on the stage.

Akechi found that there was a poisoned spike placed inside the keys of the piano that could lead to a person's death, and he pointed out the killer was one of his mates.

Kindaichi receives a call from his old mate Shimazu to go back to the Yukikage Village. After some time, Hajime meets his old friends, who are all studying in the Yukikage High School, in the village center. They take part in the funeral of Haruna, one of their mates committed suicide not long before. As for the local culture, the dead would be given arrows on her neck before being interred.

Hajime finds that Fuyumi and Ayahana are also killed in the same way of the culture.

Kindaichi tries to find evidence that Shimatsu has the motion to kill the two mates.

Shimatsu admits that his final motion is to take revenge of Harumi.

A Diet member's son gets abducted. The unknown kidnapper instructs Hajime to deliver the ransom money himself.

Akechi has planned a detective game for Kindaichi. How will Kindaichi finish this game?

Miyuki visits Kanazawa with Hajime to see her friend Reiko, whose family has made oni masks for generations.

Someone is seen fleeing the drama club director murder scene. Hajime suspects that the drama club is keeping complicated secrets.

The drama club members fear that the deaths are connected to a curse. One of the oni masks starts to bleed. Hajime realizes who the culprit is.

Inspector Kenmochi, Hajime and Miyuki go to a fencing competition featuring Kenmochi's cousin. Akechi goes there too, and he tells them an incident that was affiliated with fencing happened ten years ago.

Everybody found that Makoto Tojo was killed, but they weren't sure how the killer murdered him, since sharp objects were not allowed to bring into the fencing club. Even the sword was not used to commit the murder. But Akechi considered that an ice spike might be the key to the case.

Saki, Hajime and Miyuki go to an inn beside a beach. They find a university group that also stay at here. One of the college students tells a story about the ghost, Hanako.

The art club student who went missing is discovered dead, but everyone who went exploring with him has a perfect alibi.

Hajime arrives at the truth, but first he must take apart all the tricks the killer used to commit the crime. The key evidence is captured on film.

A valuable collection of first edition Sherlock Holmes novels gets stolen as the mystery club is busy preparing for their school festival exhibit.

Hajime and Miyuki are invited by an ocean development corporation, and the founder's daughter, welcomes them to their resort in Konpeki Island in Okinawa, which is also known as Deep Blue Island.

The armored men dressed in white clothes are actually from an organization, which has to revive the so-called kingdom from King Caesar. Everybody has been kidnapped into numerous rooms on the 7th floor.

The first victim is found dead in a room with candles that draw the symbol of "DEEP BLUE". Everybody tries to escape from the order of Kindaichi.

The two sons are found dead in different rooms. Kindaichi considers that they are killed by the armored men.

Kindaichi solves the case and points out who King Caesar is and what motion the killer has.

Hajime finds out that Miyuki has someone else accompanying her during her outing, so he trails her to find out who this person is. However, Miyuki is involved in a car accident soon after with the driver fleeing the scene.

A man is killed in the park and Hajime goes to Izumo with the special dying message containing the myth of Yamata no Orochi.

The congresswoman, Aoyama is burnt to death by the fire. Later, Fumi finds a skull being thrown into the lake, and in the next morning, the police find a skeleton from the lake, with only the glasses as a known object.

The skeleton turns to be a professor who has connection to the two victims. At the same night, the university professor, Shirai, breaks out the code of the tomb of Yamata no Orochi, and he manages to get into the "tomb", which is actually a big cave next morning. But just at that moment, he is killed in the cave.

The killer tells everybody about the thing that happened between the dead professor and three other victims.

Hajime is playing a go chess game in the police headquarters and this makes Akechi remind something happened in Las Vegas in the past. Superintendent Akechi is also a good go-chess player, and he had joined a competition in LV with another great rival, Kenneth Goldman. His mate, Patricia O'Brian, was also there.

When Akechi was preparing for the chess tournament, another Japanese chess player was found dead in a room. While having a match against Kenneth Goldman, Akechi tells him his deduction and reveals that he knows that Kenneth killed his friend. Akechi was able to deduce that his friend had figured out that Kenneth had been cheating in the chess tournament all along.

Hajime and Miyuki go to an amusement park, but Miyuki accidentally splashes a cup of coffee onto a wealthy woman's purse, which leads to an argument between the two. Hajime manages to defuse the situation and goes into the park with Miyuki and their classmate. However, when Miyuki and the others are playing in the pool the wealthy woman collides with Miyuki. When she resurfaces the wealthy woman is found dead with what appears to be fresh blood pouring from her body.