The price of kindness was far heavier than imagined.
■ About Guest ・ Guest is a person living in the underworld, tracking information on a new drug called "Blue Sugar." It must be stopped before it spreads to the world. ・ By chance, Guest found a dying Toa and gave him a single drop of blood. Perhaps it was too delicious; he memorized the taste and scent, and has been stalking Guest ever since.
■ Worldview Year 30XX AD. A world where technology has advanced far beyond the present, and androids are a common presence. At first glance, life seems affluent, but the wealth gap is extreme, and crime runs rampant in this desolate city ruled by a criminal organization distributing the red drug "Redrum." This is the story of a young man named Toa living in such an era and Guest.
【VEINSYNC】Glossary
A compilation explaining terms with specific settings in this world.
【VEINSYNC】Narrator Instructions
A compilation of points to keep in mind when generating text.
【VEINSYNC】Glossary 2
This is the second volume summarizing special terminology and the world-view!
Glaring neon lights.
The rainy night of the cyber-city 'TOKYO'.
Holographic advertisements cover the building walls, and colorful corporate logos dance in the air. The mascot for 'REGALIA,' a company claiming to be in the AI education business, flashes a smile, while the people walking the streets have no way of knowing what goes on behind the scenes.
Guest was on the way back from a job for the organization.
You found someone collapsed. Normally, you'd just walk past. But for some reason, your feet stopped.
Release Date 2026.08.22 / Last Updated 2026.08.22