Detective Conan

10 Best Episodes of Detective Conan - Season 20

The cases of a detective whose physical age was chemically reversed to that of a prepubescent boy and he must hide his true mental development.

Written by Sophie and last updated on feb 08, 2023.

PS: The following content contains spoilers!

PPS: I will admit that parts of this page was written with the help of AI - it makes my work so much easier to not start from a blank page!

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Detective Conan - S20E1

#15 - Courtroom Confrontation IV: Juror Sumiko Kobayashi (Part 1) (Season 20 - Episode 1)

A murder case court is in session in which Toshio Iwamatsu is suspected of having killed Tadashi Ishigaki after burglarizing his home office.

The episode was rated 7.83 from 12 votes.

Detective Conan - S20E4

#14 - White Day of Betrayal (Part 2) (Season 20 - Episode 4)

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Despite all appearing to be a suicide case, Conan is certain that Hoshie is the culprit and investigates on how she delivered the poison to her husband, finally finding several pieces of critical evidence and exposing her. On the way home, Ran is visibly saddened since she thinks she is the only one of her acquaintances not to have received a White Day gift, but is cheered up when she discovers white throat lozenge from a postage left by Shinichi.

The episode was rated 7.93 from 15 votes.

Detective Conan - S20E22

#13 - The Ryoma Treasure Battle Between Conan and Kid (Part 1) (Season 20 - Episode 22)

Due to a recent fad, Sakamoto Ryoma histories have become popular. Capitalizing on this, Jirokichi Suzuki's museum has set up a Ryoma exhibit. Jirokichi wanted to purchase a prize item of Ryoma's for the exhibit, a gun belt with a large ruby, from the current owners Shishihiko Tarumi and Masanosuke Hanamura. Not wanting to buy it before having it evaluating by his own appraiser, Jirokichi instead arranged a space at the exhibit for the owners to display the gunbelt in the meanwhile. Elsewhere, Sonoko tells Ran that Kaitou Kid has sent an advance notice that he will be at the exhibit to return some items that were stolen 20 years ago from Shishihiko Tarumi's Ryoma exhibit by the thief Phantom Lady: Ryoma's letter to his wife talking about the belt, a pistol Ryoma was carrying, and a sake cup with a bloodstain when Ryoma was assassinated. Inspector Ginzo Nakamori and Superintendent Shintaro Chaki discuss the best strategy to capture Kid: Lure Kid in to allow him to to return what was stolen, but then prevent him from leaving.

The episode was rated 8.00 from 16 votes.

Detective Conan - S20E8

#12 - Inubushi Castle, The Ablazed Demon Dog (Chapter of Princess) (Season 20 - Episode 8)

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Satomi attempts to leave her room and collapses; she is found holding onto a broken Buddhist prayer beads with a black bead four down from the top.

The episode was rated 8.00 from 15 votes.

Detective Conan - S20E6

#11 - Inubushi Castle, The Ablazed Demon Dog (Will-o'-The-Wisp Chapter) (Season 20 - Episode 6)

Kogoro takes Ran, Kazuha, Conan, and Heiji to the Inubushi household where they are introduced to the family. They learn about the legend passed down in the Inubushi family where their ancestor set his dog on fire after mistakenly assuming the dog killed his daughter while in reality, the dog saved his daughter. The ancestor was then killed in a house fire and the myth of the Inubushi curse was passed down. Conan and Heiji decide to investigate the headstone of the supposed dog when they witness Saki Inubushi fall from a cliff. Saki claims an ablaze inugami chased her and dies shortly after.

The episode was rated 8.00 from 16 votes.

Detective Conan - S20E18

#10 - Emergency Situation 252 (Part 2) (Season 20 - Episode 18)

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With them being secure from the police, the culprits decide to find the remaining children and silence them once and for all to ensure the smoothness of their plan: to have the daughter of their original victim bring the ransom, lock her into the building, and eliminating all witnesses by setting it on fire. While one scours the empty building, the other remains behind in one of the rooms on the fourth floor, with Conan and Ai kept tied up and gagged in the open and their other victim sealed away in a locker. But what the two don't know is that Ayumi, Mitsuhiko and Genta have actually managed to slip into the very same room and hidden themselves in one of the lockers, now able to overhear the two culprits safely but unable to reveal themselves in order to rescue their friends! However, Conan has managed to grab hold of his Detective Boys Badge and, taking a leaf from the kidnap victim, he begins to tap messages based on the Tokyo Fire Department emergency codes to his hidden friends. Deciphering the messages with the help of Mitsuhiko's note book, they gradually begin to understand that Conan wants them to call their individual cell phones, which have ended up scattered all around the building, matching the codes he transmits with the cell phone wallpapers in order to play through a chaotic sequence and thereby to draw the kidnappers out of the room. The plan eventually works: Frazzled with their continuous lack of success in apprehending the kids and contacing their kidnapee's daughter, the second culprit temporarily leaves the room in order to help in the search. The culprits eventually come behind the ruse, but by the time they react, it is already too late: Conan knocks their guard out with his tranquilizer watch and prepares to ambush his accomplice, unaware that the latter has in the meantime encountered someone on the stairs. And now ominous footsteps are approaching...

The episode was rated 8.13 from 15 votes.

Detective Conan - S20E7

#9 - Inubushi Castle, The Ablazed Demon Dog (Footsteps Chapter) (Season 20 - Episode 7)

Ran and Kazuha retreat inside the house and discover the inugami is gone. Conan and Heiji's investigation leads them to find conclusive evidence Saki's death was planned by the culprit. After hearing Ran and Kazuha's story, they realize the culprit is housing the inugami nearby and investigate an abandoned cabin. Inside the cabin yeilds evidence of a dog living there. Nearby, Tomoaki Inubashi is pounced by the inugami and receives minor burns; nearby an onion is found.

The episode was rated 8.14 from 14 votes.

Detective Conan - S20E23

#8 - The Ryoma Treasure Battle Between Conan and Kid (Part 2) (Season 20 - Episode 23)

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On the day of the heist, Conan is confronted by Kid in the bathroom stalls who reveals he was able to bypass the metal detectors by removing the lead from the pistol. As Kid leaves, Conan overhears Tarumi and his appraiser hoping Kid succeeds in his plot. Kid appears at the announced time and publicly claims he is cleaning up before setting off the fire sprinklers; he blends into the crowd who are also soaked from the rain and makes his escape.

The episode was rated 8.20 from 15 votes.

Detective Conan - S20E11

#7 - Holmes' Revelation (Holmes' Apprentice) (Season 20 - Episode 11)

Kogoro, Ran, and Conan find a cat belonging to a rich British woman who offers to pay their expenses on a trip to London so Kogoro could share his detective stories with her friends. To get past airport security, Haibara gives Conan two antidotes to the APTX 4869 for the trip and the way back home. At the Holmes Museum, Ran calls Shinichi asking him if he wants a souvenir from London. His weak reaction causes Ran to angrily hang up. Outside the museum, a kid named Apollo Glass asks to see Holmes' Apprentice to solve a code that will prevent a person from being murdered. Conan offers to solve the riddle by posing as Holmes' Apprentice. Apollo reveals a strange man gave him a note containing seven coded riddles, declaring someone in London will die if it is left unsolved. They learn from the police that many children have received the same code which Conan speculates to mean a large number of people will die. Conan and Agasa separate themselves from the group as they attempt to decode the riddles.

The episode was rated 8.28 from 18 votes.

Detective Conan - S20E19

#6 - A Video Letter of First Love (Season 20 - Episode 19)

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Detective Chiba searches the storage room of Teitan Elementary for an thirteen year old VHS tape from his childhood love, Naeko Miike, which contains the reply to his love letter. At the same time, the Detective Boys are sent to the archives to search for a tape for their teacher. Chiba reveals to them that he received a phone call from Naeko Miike asking him if he has seen the tape, prompting him to resume his search for it. Conan deduces the tape contains the video Chiba and Naeko filmed years ago and finds the tape has been recorded over.

The episode was rated 8.40 from 15 votes.

Detective Conan - S20E14

#5 - Holmes' Revelation (Code Break) (Season 20 - Episode 14)

Shinichi has returned to Conan again. However Haibara had only given him two pills, he will have to figure something out. Gradually deciphering the note handed out by the criminal, Conan discovers that the place where he plans to attack will be at Wimbledon, where Minerva Glass is supposed to be playing. When they reach the stadium, the criminal has already entered, and since they do not have tickets, they stay outside. However, they can watch the game from a screen that is located outside of Wimbledon. Minerva appears to be losing.

The episode was rated 8.42 from 19 votes.

Detective Conan - S20E13

#4 - Holmes' Revelation (Satan) (Season 20 - Episode 13)

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The next day, the police reveal the identity of the man who created the note, Hades Sabara. Kogoro and Ran decode the riddle "My portion is like a chilled boiled egg like a corpse" which refers to City Hall. There, they find many dolls with "Mazarin Stone" written on their shirts where when beheaded, reveals the letter "T". The riddle "I finished up with a whole pickle" refers to 30 St Mary Axe where they found scratched up pens labeled as Dancing Men reveal the letter "N". At Big Ben, Ran and Kogoro find an arrow pointing to a drain where The Valley of Fear of fear is inscribed. They deduce from the story that something had been sunk in the river, and find a drain cover with the letter "A". Apollo leads the two to the next riddle, "Now I remember to ask a cake to celebrate in advance" referring to St. Bride's Church where they find letters entitled, "A Scandal in Bohemia". Soaking the letter in water reveals the letter "S".

The episode was rated 8.47 from 17 votes.

Detective Conan - S20E12

#3 - Holmes' Revelation (Love is 0) (Season 20 - Episode 12)

Ran, feeling upset as she believes Shinichi does not return her feelings, is confronted by Apollo's sister, pro tennis player Minerva Glass. Minerva then parts ways with Ran advising her that Love is Zero and would never amount to anything no matter the effort. Ran calls Shinichi for advice on the riddles. Conan, tells Ran the first riddle "A rolling bell rises me", refers to Big Ben and accidentally reveals he is in London. Realizing Ran will discover Conan's true identity if she finds him, Conan and Agasa flee from her. Conan becomes cornered in a phone booth and is forced to take the antidote, APTX 4869, for the return trip and confronts Ran as Shinichi. Ran confesses her pain of liking Shinichi who is indifferent to her feelings and runs away as is left chasing after her.

The episode was rated 8.53 from 17 votes.

Detective Conan - S20E15

#2 - Holmes' Revelation (Grass Court Queen) (Season 20 - Episode 15)

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Minerva is losing because she's writing a message in braille by hitting the ball on the lawn, which Conan understood. He convinces Apollo to give him his ticket. When he enters the room, he tells Minerva that he can help. Minerva believes it and keeps writing. The message said that the mother of Minerva was going to die. Conan focuses on finding Hades and asks Minerva to lengthen the game. Minerva gets to play and the party has to decide in the tie-break.

The episode was rated 8.60 from 20 votes.

Detective Conan - S20E16

#1 - Holmes' Revelation (0 is Start) (Season 20 - Episode 16)

Conan meets his parents and give a ticket. After locates Hades with the help of Minerva, Bystanders see Conan as "Holmes Apprentice" and compliment him and then Hades sees him. Before even pressing the button to trigger the bomb, Minerva throws a tennis ball and hits Hades. After that, Conan then takes the ball and kicks it. It hits Hades and he got stopped by the police. Minerva wins the match and meets with Ran. She says Shinichi told her that the zero is also a starting point. Haibara gave Shinichi's parents an antidote because she knew that he would use it.

The episode was rated 8.86 from 21 votes.

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