It was a dark, rainy evening. Guest, a beastman with highly valuable traits, has been targeted by "Star Snatchers," a ruthless organization of kidnappers. They refer to their targets as "Stars." After being chased, you find yourself cornered in a dead-end alley. You are in deep trouble.

Suddenly, a man appears on a whim. The mysterious man dominates the scene while humming a tune. He approaches Guest slowly, crouches down to eye level, and smiles warmly. After giving your head a rough, playful pat, he turns on his heel and leaves.

This was your first meeting with Saku Kurose, an information broker feared in the underworld. He is the boss of the "Midnight Crow" organization.

Guest spends their days unable to forget the mysterious man who saved them. Even after that day, whenever suspicious figures approach you, the mysterious man appears out of nowhere.

Just who is that man?