5th Grade Class B Case Files Releases July 26 on Steam
The game's premise-two young girls solving everyday school mysteries with a Watson-and-Holmes dynamic-and its development by a teacher-mystery fan married couple give it an unusual authenticity in the indie adventure space.
Key Facts
- 5th Grade Class B Case Files releases on PC via Steam on July 26, 2026.
- The game has five chapters; chapters 1 through 3 launch on July 26, with chapters 4 and 5 planned as later DLC.
- Chapter 1 is free; chapters 2 and 3 cost 395 yen each, with a 20% launch discount reducing them to about 316 yen.
- Each chapter takes approximately one hour to play.
- A demo is available on Steam, letting players try about one-third of Chapter 1 with Japanese subtitle support.
Reporting from 2 sources: 4Gamer.net, Automaton.
Chinese indie developer Li Laoshi Studio, in partnership with Eternal Dream, will release the mystery adventure game '5th Grade Class B Case Files' on PC via Steam on July 26, 2026. The game follows two fifth-grade girls, Hanamori and Nagomi (also referred to as Wamu in some sources), who investigate strange events at their elementary school. The full game consists of five chapters. On launch day, chapters 1 through 3 will be available: Chapter 1 is free, while Chapter 2 'The Ghost in the Painting' and Chapter 3 'The First Setback' will be sold as DLC for 395 yen each. A 20% launch discount will reduce the price of each paid chapter to approximately 316 yen. Chapters 4 and 5, titled 'Blood-Colored Wings' and 'Chaos Choir,' are planned for later release as DLC. Each chapter takes about one hour to play. The development team is a married couple: Li Laoshi handles scenario and programming, while Coordinate Zahyou handles graphics. Li Laoshi is a current teacher and mystery novel enthusiast. The game is already available as a demo on Steam, letting players try roughly one-third of Chapter 1 with Japanese subtitle support.
Li Laoshi Studio, a Chinese indie team run by a married couple, and publisher Eternal Dream will release '5th Grade Class B Case Files' on July 26. The game is a mystery-focused novel adventure where players control Hanamori, a cheerful fifth-grader at Kaigara Elementary School. After her new notebook goes missing and she finds mysterious numbers on its torn pages, she teams up with classmate Nagomi, a quiet and introverted girl who acts as the detective while Hanamori records the investigation. The story unfolds through exploration scenes-such as searching a stationery store for clues-and text-based dialogue. The characters are inspired by Watson and Holmes, according to the developer. The game's five chapters each run about an hour. On release, the first three chapters drop: Chapter 1 free, Chapters 2 and 3 as DLC at 395 yen each, with a 20% launch discount. Chapters 4 and 5 will follow later as DLC. A demo is already on Steam, offering roughly one-third of Chapter 1 with Japanese subtitles.
Synthesized by Yomimono from the 2 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.