A 1991 Electronic Organizer Mystery That Ran Kanji and a Touch Pen
The organizer port shows that a handheld text adventure with full kanji display and touch controls reached Japanese business commuters years before those features became standard on dedicated handheld consoles.
Reporting from 1 source: Game Spark.
Hect's 1991 Yamamura Misa Suspense Series: Kyoto Zai-Tech Satsujin Jiken ran on Sharp's high-end Hyper Electronic System Organizer, a port of the company's 1990 Famicom release. The organizer version displays text fully in kanji, larger than Game Boy screens, and is played entirely with the included touch pen: advancing text, picking commands, and touching locations to examine. The original author, Misa Yamamura, was a bestselling mystery writer whose work had been adapted for television.
The port exists because of its author as much as its hardware. Misa Yamamura was a bestselling mystery novelist, and dramas based on her work aired many times, so her name carried weight with people who did not play games. The murder case turns on stocks, a subject the organizer's business commuter audience already knew.
Operation is all touch pen: the text advances, commands are chosen, and locations are touched to examine. The screen is monochrome, as the Game Boy's was. The game resumes from where the player left off, a small function aimed at someone reading in the gaps of a commute.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.