The story is set in London and follows Katrielle as she solves mysteries with her talking dog Sherl.
Katrielle and the Mysterious House
Katrielle and the Devil's Dress
Katrielle and the Resurrected Corpses
Katrielle and the Phantom Thief of the Century
Katrielle and the Lucky Man
The Bus that Leapt Through Time
Ratman Returns
The 100 Million Pounds that Left with the Wind
Cat-Colored Skyscrapers
Professor Layton and the Relics Treasure: Episode 1
Mystery at New Cinema Paradise
Aspoirot and London's Holiday
Katrielle and the Doppelgänger
Genius Analyst Officer Geraldine Royer
Katrielle and the Mystery Circles
Katrielle and the Pandas' March
Katrielle and the Monster of London
Molentary Express and Three Incidents
The Lonely Ghost
Professor Layton and the Relics Treasure: Episode 2
Katrielle and the Sweet-Scented Street Labyrinth
Ultra-High Performance Robot Socketman
Katrielle and the Great Office Infiltration Strategy
The Clockwork Sweets
A Riverside Festival Love Story
The Diary of Noah
Fugitive Katri
The Goddess of the Thames Smiles a Second Time
Katrielle and the Nessie of Loch Nem
Katrielle and the Immortal Vampire
Katrielle and the Witch Wife
Katrielle and the Prince of the Stars
Katrielle and the Murder on the Spaceship Bengarian
Professor Layton and the Relics Treasure: Episode 3
Professor Layton and the Relics Treasure: Episode 4
The Cursed London Collection
Mintan's New Ambition
Dancing Scotland Yard Great Investigation Line
Katrielle and the Invisible Baby
Geraldine Royer and the Final Customer
Katrielle and the Strange Spirit Photo
Great Detective Sherl O.C. Kholmes
Katrielle and Horror Castle VR
Katrielle and the Superman Chef
Katrielle and the Ghost Club
Katrielle and the Hundred Faces of Mona Lisa
The Millionaire Ariadne's Conspiracy (1)
The Millionaire Ariadne's Conspiracy (2)
Professor Layton and the Relics Treasure: Episode 5
Professor Layton and the Relics Treasure: Final Episode
BOCCHI THE ROCK!
Baka and Test: Summon the Beasts
The Everyday Tales of a Cat God
Minami-ke
Fist of the North Star
Baki the Grappler
KochiKame
Cyborg 009
Sherlock Holmes
Peep Show
Eureka Seven
Neon Genesis Evangelion
The Wallflower
Yu-Gi-Oh! Duel Monsters
Black Books
Ah! My Goddess
Scooby-Doo, Where Are You!
Beast Machines: Transformers
Lime-Colored History of War
Moyashimon