Episode 1 - The 1st Night: Presenting! The Mythical Detective!
Mayura, in search of a missing haunted doll, enlists Loki of the Enjaku Detective Agency in hope of help. At the end of the case, Mayura's fascination with Loki and his agency leads her to hire herself onto the staff.
Episode 2 - The 2nd Night: The Allies of Justice Are Totally Broke?!
Mayura finds that her mystery club has fallen a little short for recruiting, so she concocts a tour of the school's mysteries in an attempt to gain more members. Our unfortunate Loki finds himself dragged along, but amuses himself by disproving all the so-called "mysteries" that Mayura shows him. All but one, that is... And what's the secret behind the school's new transfer student Narugami?
Episode 3 - The 3rd Night: The Assassin Descends
In this episode, the Enjanku Detective Agency takes on a case of angry birds. Upon going to the zoo to investigate, they are greeted by a hawk, that gives Loki a clue to who is behind the birds' erratic behavior. That night, the bird's keeper is brainwashed into kidnapping Mayura in order to lure Loki out into opening. Who is this mysterious person?!
Episode 4 - The 4th Night: My Dad's a Great Detective?!
Both Mayura and her father are having a hard time dealing with the loss of Mayura's mother and her inability to accept death. Loki “persuades” Papa to let Mayura continue work by giving him an exhibition. After Mayura completely wrecks Loki's attempts, he sends both Mayura and her father into their memories. In it, Mayura (young) goes out in search of her mother, while accompanied by the astral projection of Papa (old), where he gains new insight to her struggle to find her lost mother.
Episode 5 - The 5th Night: Challenge of the Mystery Thief, Frey!
The incidents of stealing from a thief named Frey is all over the news. Loki is not interested, but hearing about the ring of Brisings catches his eye and sets off for the crime scene.
Episode 6 - The 6th Night: The Targeted Girl
A mysterious young girl named Reiya shows up on Loki's doorstep asking for help. She claims that, at night, the furniture has been moving on its own and she's been hearing footsteps. However, upon speaking to the head butler, we learn that no such happenings have occurred. Is this girl's story fabricated?
Episode 7 - The 7th Night: The Goddess Freya Awakens!
Reiya is the Freya, the sister of Frey and Goddess of love and fertility. She is awakened by Heimdall and turns into her full adult form who is in love with Loki, but because Loki does not return the love, she is angry and attempts to kill him.
Episode 8 - The 8th Night: Onward Yamino Detective Agency?!
After witnessing a crime, Loki is abducted and held against his will by two thugs. There, he gets a notion that only the trickster god could get--he puts his life in the hands of Mayura and Yamino by making his whereabouts a mystery for the two to 'solve'. Can Loki's mysterious helper, Yamino, and the mystery lover, Mayura, find Loki in time?
Episode 9 - The 9th Night: Mayura's Surefire Way to Pass Tests
If Mayura doesn't find a way to get a passing grade in her class, she'll end up having to stay after school to study which means: no more mysteries! While she and Narugami crack open the books, a wishing tree is growing from a gem dropped by Frey. Suddenly, Mayura gets an idea that will help her pass the tests; get one of the leaves from the wishing tree! But is it really that simple?
Episode 10 - The 10th Night: Twilight Coffee Shop
The Mystery: Loki, Yamino, and Mayura find an excellent coffee house that has mysteriously become vacant. The group makes an effort to make it popular again, but just when they do, strange things start happening again. What could be behind it?
Episode 11 - The 11th Night: Transfer Student In Love
Mayura is distraught. She finds that if she doesn't get more members for her Mystery Club, it's going to be shut down for good. The director claims her club is a waste of time and money, and she hasn't even found one single true mystery. Mayura mentions this to Frey, and he's more than eager to help. But when he starts to dip into Heimdall's stash of magic 'tricks' to conjure up a mystery for the director, it doesn't take a genius to know that things are going to get messy...
Episode 12 - The 12th Night: The Traps of Castle Dracula
Mayura tries out a brand-new video game called Dracula's Castle and gets trapped inside. Its up to Loki to complete each level in the game to rescue her and the others.
Episode 13 - The 13th Night: Fantastic Flower
A relaxing day shopping with Reiya turns hectic when Loki realizes that Reiya can become her full form--Freya--without the help of the Brising necklace. Back home, Yamino finds a strange flower in the hallway, and weird things begin to happen; we also find that Loki can become full sized too, with a litte "Help" from the allfather, Odin.
Episode 14 - The 14th Night: Little Dog, Dark Dog, Black Dog
Mayura finally decides to get the one thing she's sure will help transform her into the ultimate mystery solver; a dog! When she sets out to find one, a puppy literally falls out of the blue and at her feet. But this black pup probably won't be sniffing out criminals any time soon... or will he?
Episode 15 - The 15th Night: The Beautiful Assassins
A new fortune-telling trio enters town, and, predictably, Mayura is excited. She attempts to drag the group along, even showing them a poster she found about the fortune tellers, but in the end she heads out alone. It becomes clear, however, that the Fortune tellers may not be Fortune tellers at all…
Episode 16 - The 16th Night: Bell of Evil
There's going to be a wedding at Mayura's temple soon, and the gang is invited. However, Verdandi,one of the Norsemen, has something up her sleeve. Will the wedding day be tarnished, or can Loki and his friends pull through?
Episode 17 - The 17th Night: Crashing Into Kitchen Sanctuary
When Yamino, Mayura and Narugami go on a competitive cooking show, they discover that the opposing team is...Frey, Heimdall, and Gullinbursti? And Skuld is the show's announcer! Now Yamino and Loki must defeat the Norns and win the competition!
Episode 18 - The 18th Night: The Multi-Facted Detective Appears?!
A spell is cast on Loki when he investigates a mysterious house, and now he is taking on other people's personalities! Yamino tries to help Loki but the Norns attack...how can Loki defeat them when he isn't quite himself?
Episode 19 - The 19th Night: A Tale of Narugami's Devotion
Narugami meets an amazing girl and falls in love. But the Norns have a new plan and she may not be what she seems...
Episode 20 - The 20th Night: The Red Shoes
The Norns decide to use Freya to get to Loki. Skuld is the next Norn to plot Loki's death, but can she really kill him? What is the significance of the red shoes?
Episode 21 - The 21st Night: Heimdall, God of the Dawn
Odin gives Heimdall a gift of a powerful eye. Heimdall then sets out to destroy Loki unless he returns Heimdall's right eye.
Episode 22 - The 22nd Night: The Goddesses' Reality
Loki wants to talk to the Norns but first he must survive their crazy house!
Episode 23 - The 23rd Night: Summer Girl of the Lake
On a trip to the lake in search of summer fun, Loki might get more than he expected.
Episode 24 - The 24th Night: The Shadow of Solitude
Mayura decides to investigate Loki's house while he and the other gods have a picnic. Unfortunately, she is involved in Hel's evil plans.
Episode 25 - The 25th Night: The Dream's Final Stop
When Hel kidnaps Yamino, Ecchan and Fenrir, Loki is forced into action. He and the goddess of the underworld embark on a strange journey on a train car...but will it end victoriously for Loki or will he perish in Hel's flames?
Episode 26 - The 26th Night: The Gods Depart
The assassins have stopped attacking Loki and now he is free to return to the world of the gods. The only thing stopping him is Mayura. Can he bear to return to the world of the gods and leave her?