Episode 1 | The Case of the Metropolitan Serial Drownings

Detective Isshiki is forced to halt the murder investigation by the Metropolitan Police Department and instead sent to meet the unconventional detective Kamonohashi Ron.

Episode 2 | The Case of the Locked-Room Piggy Bank Theft

Despite his boss's low opinion of him, Ron is eager to use Toto to investigate a new report about coins going missing from a piggy bank.

Episode 3 | The Case of the Benizome Hot Spring Murder - Part 1

Ron and Toto stay at Benizome Inn, where the friendly innkeeper conceals his true identity, and Ron's eccentricities become apparent soon enough.

Episode 4 | The Case of the Benizome Hot Spring Murder - Part 2

After a murder happens at the Inn, Ron listens to the guests' testimonies and starts deducing, while Spitz secretly hopes to catch him, yet both Spitz and Amamiya ultimately entrust the investigation to Toto.

Episode 5 | The Case of the Hand Collector

Detective Omito Kawasemi arrives at the First Investigation Division for a joint murder investigation which results in a newfound rivalry with Ron.

Episode 6 | The Case of the Live Broadcast Murder

Ron is a fan of a TV show where a psychic attempts to prove mind control but is challenged by a neurosurgeon, and during a live broadcast, the psychic writes "Death" on a card.

Episode 7 | The Case of the Observatory Murder - Part 1

Toto, Ron, and John Grizzly are invited to a meteor shower viewing on Nandan Island. Due to a past murder at the observatory, first-rate detectives have been brought in as a precaution.

Episode 8 | The Case of the Observatory Murder - Part 2

Ron is named the main suspect in a murder and Toto investigates to clear his name. Everyone but Ron has an alibi for the time of the murder, which only seems to cement his guilt, but Toto makes a few helpful discoveries.

Episode 9 | The Case of the Observatory Murder - Part 3

Toto gathers everyone, revealing the truth behind the murders and prompting the exposed culprit to take drastic measures not to be caught, but not before revealing that there's more to this incident than anyone imagined.

Episode 10 | The Case of the Poisoned Latte

Toto is shadowed by a reporter who's a huge fan of his. They step into a cafe where Ron happens to be working, making things a little awkward. Then, a customer collapses to the ground, poisoned.

Episode 11 | The Case of the Mad Chameleon Murder

During a business trip to Aichi, Toto encounters Kawasemi, who is in a slump after losing a subordinate and his sharp insight. While together, they witness a new crime unfold before them.

Episode 12 | The Case of the Yadagami-sama Murders (Part 1)

Episode 13 | The Case of the Yadagami-sama Murders (Part 2)