
A polite and meticulous super sleuth known as the Butt Detective solves a myriad of baffling mysteries, blowing raspberries in the face of crime.
Animation, Kids • Series • 2018 • 1 season
Starring: Yuko Sanpei, Ayaka Saito, Takahiro Sakurai

S1 E1 - Episode 1
There's a candy thief at large and Butt Detective's on the case with Brown as his backup. But the trail of the culprit leads right into a lake.
May 3, 2018 • 20m

S1 E2 - Episode 2
Butt Detective goes to the station, where the officers are looking into who's behind a string of burglaries. But the chief has another job for them.
May 4, 2018 • 20m

S1 E3 - Episode 3
After a Kaito the canine crook threatens to steal the Goddess Scarf from the museum, Butt Detective prepares to protect the precious booty.
May 5, 2018 • 20m

S1 E4 - Episode 4
The Black Shadow thieves are in town and the police ask Butt Detective for assistance in putting an end to their mischief before any theft occurs.
Jul 14, 2018 • 20m

S1 E5 - Episode 5
Butt Detective, Brown and Chief Maltese must get to the bottom of the Black Shadow Gang's burglaries. Later, they search for the leader's hideout.
Jul 21, 2018 • 20m

S1 E6 - Episode 6
After someone leaves a strange box at the Lucky Cat, the police show up to help only to find they're behind Butt Detective, who's already on the case.
Jul 28, 2018 • 20m

S1 E7 - Episode 7
A conversation at a feline cafe leads Butt Detective to reveal the backstory of how Brown became his assistant, going back to how he learned to talk.
Aug 4, 2018 • 20m

S1 E8 - Episode 8
A potato-loving lady clad in purple knocks on Butt Detective's door and asks him to get to the bottom of a mysterious message from her ancestors.
Aug 25, 2018 • 20m

S1 E9 - Episode 9
The purple potato case continues as Butt Detective, Brown and their purple companion head into the ancestors' hut. But it appears to be empty.
Dec 1, 2018 • 20m

S1 E10 - Episode 10
While hearing about a forest cafe's missing manager, Butt Detective realizes he's been tailed by a persistent koala who may be after Brown's job.
Dec 8, 2018 • 20m

S1 E11 - Episode 11
When the local barbershop owner complains of a spooky ghost scaring his customers, Butt Detective volunteers to get to the bottom of the mystery.
Dec 1, 2018 • 20m

S1 E12 - Episode 12
Butt Detective is asked to protect the Oyagi family treasure from Kaito U, a master of disguise, but he seems to remain one step behind the thief.
Dec 8, 2018 • 20m

S1 E13 - Episode 13
Master burglar Kaito U's stolen the booty from right under Butt Detective's cheeks. But our perceptive hero is not far behind the thief.
Dec 15, 2018 • 20m

S1 E14 - Episode 14
Butt Detective gets a mysterious letter from a faraway jungle, but it's missing a return address on its back. He and Brown head out for an adventure.
Jan 5, 2019 • 20m

S1 E15 - Episode 15
Butt Detective and Brown venture further into the dangerous ruins only to come face-to-face— or rather cheek-to-cheek—with a familiar figure.
Jan 12, 2019 • 20m

S1 E16 - Episode 16
Butt Detective is expecting to be interviewed by Cafe Guide magazine, but the odd interviewer who arrives doesn't quite pass the sniff test.
Jan 19, 2019 • 20m

S1 E17 - Episode 17
Just as Butt Detective is about to go to the police station to learn about a new crime-fighting tool, he receives an urgent call about a stolen item.
Jan 26, 2019 • 20m

S1 E18 - Episode 18
An international crime-fighting organization has discovered Kaito U's hiding place. Before they head in, Butt Detective is brought along as backup.
Feb 2, 2019 • 20m

S1 E19 - Episode 19
Butt Detective and Brown resolve to get to the bottom of rumors about a giant thief. They soon deduce what appears to be its present location.
Feb 9, 2019 • 20m

S1 E20 - Episode 20
While the cops continue their investigation into the giant jewel thief, Butt Detective and Brown are hot on the heels (and cheeks) of the big bandit.
Feb 16, 2019 • 20m

S1 E21 - Episode 21
Brown reports that while Butt Detective was out, someone stole his precious snack. The big-cheeked detective uses the case as a training opportunity.
Feb 23, 2019 • 20m

S1 E22 - Episode 22
Koala-chan asks Butt Detective for help dealing with ghosts seen near a park she likes. Brown insists he's not scared but doesn't seem to want to go.
Mar 2, 2019 • 20m

S1 E23 - Episode 23
Butt Detective, Brown and Koala-chan are trapped behind a locked door in the supposedly-haunted mansion but he soon deduces an alternate egress.
Mar 9, 2019 • 20m

S1 E24 - Episode 24
After getting his cheeks shaved, Butt Detective accepts a job from the police to return a stolen item to its owner. But no one knows who it is.
Mar 16, 2019 • 20m

S1 E25 - Episode 25
Butt Detective investigates a robbery at the Elvis Grizzly museum. The case darkens as the clues lead back to one of the police's own K-9 officers.
Mar 23, 2019 • 20m

S1 E26 - Episode 26
When a missing bag turns back up filled with cash, Butt Detective must reconstruct a series of unintentional exchanges before two lovebirds depart.
Mar 30, 2019 • 20m

S1 E27 - Episode 27
A wealthy banker whose daughter has been kidnapped calls on Butt Detective. The criminal is demanding his famous Rainbow Diamond, but it's missing.
Jul 6, 2019 • 20m

S1 E28 - Episode 28
Butt Detective's search for the Rainbow Diamond is almost at an end. But some wall-writings indicate that actually picking it up might not be so easy.
Jul 13, 2019 • 20m

S1 E29 - Episode 29
Kaito U's back and he's threatening to steal a porcine spa's "greatest treasure." Butt Detective and the K-9s try to deduce what it could be.
Jul 20, 2019 • 20m

S1 E30 - Episode 30
Butt Detective and Brown head to a local festival, where a troublemaker who looks just like the double-cheeked detective has been making mischief.
Jul 27, 2019 • 20m

S1 E31 - Episode 31
Butt Detective uses the cards and coin that his doppelganger left behind to locate him. Meanwhile, Brown helps his new female friend find her ribbon.
Aug 3, 2019 • 20m

S1 E32 - Episode 32
A new investigator claims to be the best and challenges Butt Detective to a public detective match. But our hero senses something amiss.
Aug 10, 2019 • 20m

S1 E33 - Episode 33
There's trouble at the KNK bank and the police ask Butt Detective to take the job. But soon Carrot Horse butts in, complicating the situation.
Aug 17, 2019 • 20m

S1 E34 - Episode 34
Butt Detective receives another request from rich banker Kamenokoji. His daughter Midori is up to something odd and he wants the sleuth to tail her.
Aug 24, 2019 • 20m

S1 E35 - Episode 35
The K-9 cops and a gang of sparrow laborers ask Butt Detective to look into what's behind a series of spooky ghost-sightings at an old clock tower.
Aug 31, 2019 • 20m

S1 E36 - Episode 36
After feline thieves nab a special cane, Butt Detective is on the case. He's joined by his double-cheeked dad, who has a history with the stolen item.
Sep 7, 2019 • 20m

S1 E37 - Episode 37
Brown and his koala pal star in a new detective movie. But behind the scenes, Butt Detective must solve a real case involving some thieving monkeys.
Sep 14, 2019 • 20m

S1 E38 - Episode 38
Butt Detective arrives at Castle Wolf to protect its booty from Kaito U. But he gets the impression there's something not quite right with his host.
Sep 21, 2019 • 20m

S1 E39 - Episode 39
Butt Detective arrives at the treasure only to see it stolen by Kaito U. But then a second Kaito U appears and each claims that the other is a phony.
Sep 28, 2019 • 20m

S1 E40 - Episode 40
Butt Detective and Brown head to a ski slope to investigate rumors of a monstrous yeti, who is behind the resort’s sudden drop in customers.
Apr 4, 2020 • 20m

S1 E41 - Episode 41
Butt Detective's deductions finally lead him to the bottom of the yeti mystery. But he still needs to catch the culprits responsible for its creation.
Apr 11, 2020 • 20m

S1 E42 - Episode 42
Butt Detective's deductions finally lead him to the bottom of the yeti mystery. But he still needs to catch the culprits responsible for its creation.
Apr 18, 2020 • 20m

S1 E43 - Episode 43
Chief Maltese butts heads with his rival, Chief Chihuahua, at a restaurant. After something goes missing, they compete to see who can solve the case.
Apr 25, 2020 • 20m

S1 E44 - Episode 44
Butt Detective uses tricky tactics to give Brown a lesson in sleuthing. Later, the local kids surprise Brown by giving him a case of his own to solve.
May 2, 2020 • 20m

S1 E45 - Episode 45
Butt Detective and Brown receive a mysterious visitor. Once they deduce his identity, he asks them to help stop Kaito U from stealing his treasure.
May 9, 2020 • 20m

S1 E46 - Episode 46
Butt Detective and the contestants face their next trial: a giant, menacing snake. Later, Kaito U finally shows himself and tries to steal the veil.
May 16, 2020 • 20m

S1 E47 - Episode 47
Kaito U enters the infamously inescapable Orinona Prison and its straight-arrow warden vows to reform him. But Kaito U isn't about to change his ways.
May 23, 2020 • 20m

S1 E48 - Episode 48
Kaito U and his crow companion escape from their prison cell, but they're not out of danger yet. Their first stop is the guards' break room.
May 30, 2020 • 20m

S1 E49 - Episode 49
While Butt Detective and the canine cops review a string of apple thefts, a journalist bursts in to report his camera was stolen by a spooky culprit.
Jun 6, 2020 • 20m

S1 E50 - Episode 50
After two painful cavities lead Brown and Koala-chan to meet at the dentist's office, a canine detective asks them to find his 11 missing puppies.
Jun 13, 2020 • 20m

S1 E51 - Episode 51
The canine cops reveal a new crime-fighting invention that they're very proud of. But it reminds Brown of the destruction caused by their last one.
Jun 20, 2020 • 20m

S1 E52 - Episode 52
Kaito U is going after the opera house's treasure, so Butt Detective and Brown pay a visit. One of the actors they see on stage is awfully familiar.
Jun 27, 2020 • 20m

S1 E53 - Episode 53
Apr 3, 2021 • 20m

S1 E54 - Episode 54
Apr 10, 2021 • 20m

S1 E55 - Episode 55
Apr 17, 2021 • 20m

S1 E56 - Episode 56
Apr 24, 2021 • 20m

S1 E57 - Episode 57
May 1, 2021 • 20m

S1 E58 - Episode 58
May 8, 2021 • 20m

S1 E59 - Episode 59
May 15, 2021 • 20m

S1 E60 - Episode 60
May 22, 2021 • 20m

S1 E61 - Episode 61
May 29, 2021 • 20m

S1 E62 - Episode 62
Jun 5, 2021 • 20m

S1 E63 - Episode 63
Jun 12, 2021 • 20m

S1 E64 - Episode 64
Jun 19, 2021 • 20m

S1 E65 - Episode 65
Jun 26, 2021 • 20m

S1 E66 - Episode 66
Apr 9, 2022 • 20m

S1 E67 - Episode 67
Apr 16, 2022 • 20m

S1 E68 - Episode 68
Apr 23, 2022 • 20m

S1 E69 - Episode 69
Apr 30, 2022 • 20m

S1 E70 - Episode 70
May 7, 2022 • 20m

S1 E71 - Episode 71
May 14, 2022 • 20m

S1 E72 - Episode 72
May 21, 2022 • 20m

S1 E73 - Episode 73
May 28, 2022 • 20m

S1 E74 - Episode 74
Jun 4, 2022 • 20m

S1 E75 - Episode 75
Jun 11, 2022 • 20m

S1 E76 - Episode 76
Jun 18, 2022 • 20m

S1 E77 - Episode 77
Jun 25, 2022 • 20m

S1 E78 - Episode 78
Jul 2, 2022 • 20m

S1 E79 - Episode 79
Apr 8, 2023 • 20m

S1 E80 - Episode 80
Apr 15, 2023 • 20m

S1 E81 - Episode 81
Apr 22, 2023 • 20m

S1 E82 - Episode 82
Apr 29, 2023 • 20m

S1 E83 - Episode 83
May 6, 2023 • 20m

S1 E84 - Episode 84
May 13, 2023 • 20m

S1 E85 - Episode 85
May 20, 2023 • 20m

S1 E86 - Episode 86
May 27, 2023 • 20m
S1 E87 - Episode 87
Apr 6, 2024 • 20m
S1 E88 - Episode 88
Apr 13, 2024 • 20m
S1 E89 - Episode 89
Apr 20, 2024 • 20m
S1 E90 - Episode 90
Apr 27, 2024 • 20m
S1 E91 - Episode 91
May 4, 2024 • 20m
S1 E92 - Episode 92
May 11, 2024 • 20m
S1 E93 - Episode 93
May 18, 2024 • 20m
S1 E94 - Episode 94
May 25, 2024 • 20m
S1 E95 - Episode 95
Jun 1, 2024 • 20m
S1 E96 - Episode 96
Jun 8, 2024 • 20m
S1 E97 - Episode 97
Jun 15, 2024 • 20m
S1 E98 - Episode 98
Jun 22, 2024 • 20m
S1 E99 - Episode 99
Jun 29, 2024 • 20m
S1 E100 - Episode 100
Jul 6, 2024 • 20m
S1 E101 - Episode 101
Jul 13, 2024 • 20m
S1 E102 - Episode 102
Oct 5, 2024 • 20m
S1 E103 - Episode 103
Oct 12, 2024 • 20m
S1 E104 - Episode 104
Oct 19, 2024 • 20m
S1 E105 - Episode 105
Oct 26, 2024 • 20m
S1 E106 - Episode 106
Nov 2, 2024 • 20m
S1 E107 - Episode 107
Nov 9, 2024 • 20m
S1 E108 - Episode 108
Nov 16, 2024 • 20m
S1 E109 - Episode 109
Apr 5, 2025 • 20m
S1 E110 - Episode 110
Apr 12, 2025 • 20m
S1 E111 - Episode 111
Apr 19, 2025 • 20m
S1 E112 - Episode 112
Apr 26, 2025 • 20m
S1 E113 - Episode 113
May 3, 2025 • 20m
S1 E114 - Episode 114
May 10, 2025 • 20m
S1 E115 - Episode 115
May 17, 2025 • 20m
S1 E116 - Episode 116
May 24, 2025 • 20m
S1 E117 - Episode 117
Oct 4, 2025 • 20m
S1 E118 - Episode 118
Oct 11, 2025 • 20m
S1 E119 - Episode 119
Oct 18, 2025 • 20m
S1 E120 - Episode 120
Oct 25, 2025 • 20m
S1 E121 - Episode 121
Nov 1, 2025 • 20m
S1 E122 - Episode 122
Nov 8, 2025 • 20m
S1 E123 - Episode 123
Nov 15, 2025 • 20m
S1 E124 - Episode 124
Apr 4, 2026 • 20m
S1 E125 - Episode 125
Apr 11, 2026 • 20m
S1 E126 - Episode 126
Apr 18, 2026 • 20m
S1 E127 - Episode 127
Apr 25, 2026 • 20m
S1 E128 - Episode 128
May 2, 2026 • 20m
S1 E129 - Episode 129
May 9, 2026 • 20m
S1 E130 - Episode 130
May 16, 2026 • 20m
S1 E131 - Episode 131
May 23, 2026 • 20m
No clips or trailers are available for this title.
Butt Detective
A polite and meticulous super sleuth known as the Butt Detective solves a myriad of baffling mysteries, blowing raspberries in the face of crime.
Animation, Kids • TV Series • 2018