The BEST episodes of Detective School Q

Every episode of Detective School Q ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Detective School Q!

The Dan Detective School is a Japanese detective school permitted by the government. Kyu, an ordinary boy with big dreams to become detective, attends the school as a member of Q Class along with Megu, the girl with photographic memory; Kazuma, the computer genius kid; Kinta, the strong; and the mysterious Ryu. Together they solve many cases which bring them to face Pluto, the crime organization which should have been destroyed by Dan Morihiko.

Last Updated: 6/7/2025Network: TBS (JP)Status: Ended
30 Meters Underwater. The Case of the Underwater Locked Room Murder
star
8.50
2 votes

#1 - 30 Meters Underwater. The Case of the Underwater Locked Room Murder

Season 1 - Episode 15 - Aired 7/22/2003

While on a vacation by the sea, class Q comes across a group of marine biology students whose teacher has gone missing. As such, the class gets involved with underwater graves, treacherous students and hidden treasure.

Directors: Noriyuki Abe
Watch Now:Amazon
The Conclusive Moment! The Corpse that Disappears into the Sky
star
8.50
2 votes

#2 - The Conclusive Moment! The Corpse that Disappears into the Sky

Season 1 - Episode 18 - Aired 8/12/2003

When a new murder takes place the local villagers believe that the local Gods are responsible. As such it is up to class Q to get to the bottom of the crime.

Directors: Noriyuki Abe
Watch Now:Amazon
An Announcement From the Spiritual World! The Forbidden Truth!!
star
8.50
2 votes

#3 - An Announcement From the Spiritual World! The Forbidden Truth!!

Season 1 - Episode 14 - Aired 7/15/2003

The identity of the murderer is revealed and there is another surprise regarding the psychic's true identity.

Directors: Noriyuki Abe
Watch Now:Amazon
The Pretty-Boy Detective! He Appears at Last!!
star
8.00
3 votes

#4 - The Pretty-Boy Detective! He Appears at Last!!

Season 1 - Episode 8 - Aired 6/3/2003

The DSS students are taken to an island where they meet a new student, Ryuu, who is a child prodigy. Things begin to get complicated when the students of class A are found murdered behind locked doors.

Directors: Noriyuki Abe
Watch Now:Amazon
Class Rivalry! Battle of the Vanishing Person
star
8.00
2 votes

#5 - Class Rivalry! Battle of the Vanishing Person

Season 1 - Episode 16 - Aired 7/29/2003

Nanami tricks class Q in to solving one of his cases for him by posing as Dan. When the real Dan learns of this he sends class Q off to investigate more thoroughly.

Directors: Noriyuki Abe
Watch Now:Amazon
Uncharted Waters that Lead to Death! The Legend of Kami Kakushi Village
star
8.00
2 votes

#6 - Uncharted Waters that Lead to Death! The Legend of Kami Kakushi Village

Season 1 - Episode 17 - Aired 8/5/2003

Class Q is sent to Gourd village to investigate the disappearances connected to the drawing. Upon arriving the class is greeted by many strange sights, such as people in masks and a group of TV journalists.

Directors: Noriyuki Abe
Watch Now:Amazon
The Revelation of Death! You're Next!!
star
8.00
2 votes

#7 - The Revelation of Death! You're Next!!

Season 1 - Episode 19 - Aired 8/26/2003

While Kyuu, Kinta and Kazuma try to unravel the mystery behind a cryptogram they found, Megu and Ryuu are summoned to the high priest.

Directors: Noriyuki Abe
Watch Now:Amazon
The Last Mysterious Disappearance! There's Only One Answer
star
7.50
2 votes

#8 - The Last Mysterious Disappearance! There's Only One Answer

Season 1 - Episode 21 - Aired 9/9/2003

With the facts laid bare the murderer flees and Kyuu's life is put in danger.

Directors: Noriyuki Abe
Watch Now:Amazon
Alibi Train
star
7.50
2 votes

#9 - Alibi Train

Season 1 - Episode 23 - Aired 10/11/2003

A cartoonist believes she has found the perfect way to commit murder on a train and get away scott free. Unfortunately she makes one mistake, sitting in the same compartment as Kyuu and Kinta.

Directors: Noriyuki Abe
Watch Now:Amazon
Evil Spirit in the Locked Room! The Unstopable Murders
star
7.50
2 votes

#10 - Evil Spirit in the Locked Room! The Unstopable Murders

Season 1 - Episode 13 - Aired 7/8/2003

The class gets closer to finding the murderer, but another death awaits as they get involved in insurance scams and feuds over the inheritance.

Directors: Noriyuki Abe
Watch Now:Amazon
The Final Deciding Match! The Truth about Q Class!!
star
7.50
2 votes

#11 - The Final Deciding Match! The Truth about Q Class!!

Season 1 - Episode 11 - Aired 6/24/2003

Class Q finally figures out that Dan is the perpetrator of the "murders". Dan then reveals that class Q is not the remedial class but the school's elite, and that this was all a test to weed out the unworthy.

Directors: Noriyuki Abe
Watch Now:Amazon
The Jigsaw-Puzzle Will
star
7.50
2 votes

#12 - The Jigsaw-Puzzle Will

Season 1 - Episode 7 - Aired 5/27/2003

When the class goes to visit an artist friend of Katagiri's, they arrive at the scene of his murder. The only clues are a completely blank jigsaw-puzzle and the victims photographic memory.

Directors: Noriyuki Abe
Watch Now:Amazon
An Intent to Kill at the School Entrance Ceremony! School Bomb Threat
star
7.33
3 votes

#13 - An Intent to Kill at the School Entrance Ceremony! School Bomb Threat

Season 1 - Episode 4 - Aired 5/6/2003

Kyu and his friends have finally been accepted into the famous DDS. However, they immediately stumble across a threatening note, warning of three bombs placed within the school. Two of the bombs are quickly found along with the bomber. However, it is then up to Class Q to locate the final bomb before it is too late.

Directors: Noriyuki Abe
Watch Now:Amazon
A First Step to Dreams - The Entrance Exam Trap
star
7.25
4 votes

#14 - A First Step to Dreams - The Entrance Exam Trap

Season 1 - Episode 2 - Aired 4/22/2003

Kyuu, Kinta and Meg arrive for the DDS entrance exam along with hundreds of other applicants. Their task is to solve a murder from limited clues and then follow the correct suspect. To make things even worse they have only a few hours to achieve their objective.

Directors: Noriyuki Abe
Watch Now:Amazon
Rhythm of the Death God
star
7.00
1 votes

#15 - Rhythm of the Death God

Season 1 - Episode 37 - Aired 1/24/2004

When one of the violinist's is poisoned, Ryuu's suspicions and the lack of evidence cause him to lose his self-restraint. However, things continue to get worse when another person dies.

Directors: Noriyuki Abe
Watch Now:Amazon
Ryu's Determination
star
7.00
1 votes

#16 - Ryu's Determination

Season 1 - Episode 43 - Aired 3/6/2004

Whilst conducting their wrap up the class bring many new clues to light and Ryuu realises that Pluto has something to do with the case.

Directors: Noriyuki Abe
The Death March of Friendship
star
7.00
1 votes

#17 - The Death March of Friendship

Season 1 - Episode 39 - Aired 2/7/2004

While Kinta and Kyuu race to get Ryuu to a hospital Hongo tells students about the existence of the criminal organization, Pluto. To make matters worse one of their agents may be amongst them.

Directors: Noriyuki Abe
Watch Now:Amazon
Homicide Concerto
star
7.00
1 votes

#18 - Homicide Concerto

Season 1 - Episode 38 - Aired 1/31/2004

Another death gives the class the break they need but the revelation of the killer's identity costs one of the students dearly.

Directors: Noriyuki Abe
Watch Now:Amazon
The Murder Case of the Illusionary House
star
7.00
1 votes

#19 - The Murder Case of the Illusionary House

Season 1 - Episode 36 - Aired 1/17/2004

When the class is called in to investigate a death threat sent to a prominent violinist, they become entangled in a fight for succession as each of the violinist's students vie for supremacy.

Directors: Noriyuki Abe
Watch Now:Amazon
The Curse that Disappeared
star
7.00
1 votes

#20 - The Curse that Disappeared

Season 1 - Episode 34 - Aired 12/27/2003

Kazuma is closer to solving the mystery of who tried to kill his teacher.

Directors: Noriyuki Abe
Watch Now:Amazon
The Cursed Idol
star
7.00
2 votes

#21 - The Cursed Idol

Season 1 - Episode 24 - Aired 10/18/2003

When Kyuu gets interested in one of the cases sent to DDS he decides to use his vacation time to investigate. However, he is soon challenged to a deductive duel by Sakurako Yukihira of class A.

Directors: Noriyuki Abe
Watch Now:Amazon
It Comes to Light! The Masked High Priest - Crimes and Lies!!
star
7.00
1 votes

#22 - It Comes to Light! The Masked High Priest - Crimes and Lies!!

Season 1 - Episode 20 - Aired 9/2/2003

Ryuu and Kyuu have solved the mystery including the tunnel, the murders, and the masks. Now as their signature accusatory meeting begins the truth will be revealed, as will the murderer.

Directors: Noriyuki Abe
Watch Now:Amazon
A Curse Breaks Out!? The Seance Murder Case
star
7.00
2 votes

#23 - A Curse Breaks Out!? The Seance Murder Case

Season 1 - Episode 12 - Aired 7/1/2003

The class witnesses a séance, one in which a family will is revealed. When the psychic in charge is murdered while in an enclosed circle the class gets to work. Too bad that there are so many suspects.

Directors: Noriyuki Abe
Watch Now:Amazon
The Perfect 1000-Witness Alibi
star
7.00
2 votes

#24 - The Perfect 1000-Witness Alibi

Season 1 - Episode 6 - Aired 5/20/2003

A murder takes place and one of the suspects, a stage actress, has about 1000 witnesses who watched her performance when the murder took place.

Directors: Noriyuki Abe
Watch Now:Amazon
Final Exam! The Stretched-Around Trap
star
7.00
6 votes

#25 - Final Exam! The Stretched-Around Trap

Season 1 - Episode 3 - Aired 4/29/2003

The four hopefuls now enter the next phase of their exam. As they chase a suspect up a hill they lose sight of him and soon become separated. Meanwhile, Kyuu and Meg come across an injured hiker. Kyuu beseeches Meg to go on without him while he helps the man.

Directors: Noriyuki Abe
Watch Now:Amazon