Oshiri Tantei

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.
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.
After a Kaito the canine crook threatens to steal the Goddess Scarf from the museum, Butt Detective prepares to protect the precious booty.
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.
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.
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.
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.
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.
The purple potato case continues as Butt Detective, Brown and their purple companion head into the ancestors' hut. But it appears to be empty.
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.