Sōichirō is the character designer for Ryukishi07’s Rose Guns Days game, and he also drew the Rose Guns Days Season One manga adaptation.
The May issue of Square Enix’s Gangan Joker magazine published the final chapter on Saturday of Moto Nakamura and Sōichirō’s Innocent Devil manga series.
Sōichirō also drew the “Episode 4: Alliance of the Golden Witch” arc of the manga series Umineko When They Cry.
Separate from these serial killers that shook the world is an alternate reality where a criminal group known as “Innocent Devil” exists.