Atsuko Nishida is the character designer on Under Mythos, the dark fantasy JRPG from Kadath planned for 2028 on PC and Switch.
Atsuko Nishida is attached to Under Mythos as character designer. The project is the first from Kadath, a production company founded in January 2026 by producer Yoichi Miyaji, and it is planned for 2028 on PC via Steam and Nintendo Switch. Nishida's role is the only credit the two stories give her.
The game itself pairs a hot spring inn with a dungeon crawl. The protagonist is a single cat searching for its Mother, who arrives at a mysterious inn where otherworld residents soak and takes work entertaining guests. Players explore dungeons for ingredients and resources, fight action battles against grotesque transformed beings, and return safely to put the rewards back into running the inn. Running the inn produces new encounters that lead back to exploration. The familiar world gradually mutates into an unpredictable madness as the story progresses.
Kadath describes its goal as restoring Japan-originated JRPGs and original IP, and Miyaji frames the project as an indie-minded effort to court fans from the planning stage. Developers helping on the game include Matrix, Liz, and Taiwan's iSWEETY. The second report adds that Kadath runs a small, creator-first production house that pulls staff from several studios as needed, and treats Under Mythos as the test case for whether that model can deliver an original JRPG.
Written with AI from the cited Yomimono stories below, each itself sourced.
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Oct 15
KADATH, a production company founded in January 2026, is working on Under Mythos, a dark fantasy JRPG planned for 2028 on PC and Switch. Yoichi Miyaji leads it; Atsuko Nishida designs characters. The player is a cat searching for Mother who ends up working at a Japanese hot spring inn, with a Cthulhu mythos world beneath the calm. Matrix, Liz, and Taiwan's iSWEETY are among the developers helping.
Sep 10
Kadath Co., Ltd. announced on September 10 the dark fantasy JRPG Under Mythos, planned for release in 2028 on PC via Steam and Nintendo Switch. The studio was founded in January 2026 by producer Yoichi Miyaji, whose credits include the LUNAR and GRANDIA series, and Under Mythos is its first project. The protagonist is a single cat that wanders into another world while searching for its Mother, arrives at a mysterious hot spring inn where otherworld residents soak, and works there entertaining guests while wishing to reunite with Mother. The game system combines hot spring inn management simulation with extraction: players explore dungeons for ingredients and resources, fight action battles against grotesque transformed beings, and return safely to put the ingredients and rewards back into running the inn. Developing the inn produces new encounters and experiences that lead back to exploration. The familiar world gradually mutates into an unpredictable madness as the story progresses.