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• PC-8801mkIISR
• 1988
• Riverhill Soft

Release 03/05/2026

Kohakuiro no Yuigon

A murder at the Kohaku-kan. Join Detective Ryunosuke Todo as he unpicks a tangled web of secrets to find the truth.

List Price

＄6.49

• © althi Inc.

This is an adventure game released in Japan by Riverhill Soft in 1988. It is the first "Ryunosuke Todo Detective Diary." Players become detective Ryunosuke Todo to solve a murder case at the "Kohakukan" mansion.

The core of this detective mystery lies in navigating a complex web of characters and relationships to uncover vital clues. Set in a sepia-toned world of Taisho-era romance, you must use your wits to solve this increasingly difficult case. Who is the true killer behind these escalating murders? And what is their dark motive?