Zoop! - Hunter's Grimm is a spooky adventure centered on demon-hunting siblings Nicholas and Sarai Grimm. Their work begins as a simple routine: track down supernatural threats, defeat them, collect a reward, then settle in with research books and frosty chocolate milkshakes. That routine breaks when a favor to a friend turns the pair into outlaws, setting them on a dangerous path shaped by an old rival and events they struggle to understand.
The premise places the siblings in a world of ghosts, monsters, and demons, with their paid work as hunters at the heart of the story. A selfless act is the turning point: rather than continuing their usual cycle of jobs, Nicholas and Sarai must contend with being hunted and discover what lies behind their predicament. The adventure also points toward new lands and helping people in need, giving the pair a broader purpose than simply taking contracts.
The game’s distinctive contrast is between grim supernatural work and the siblings’ decidedly ordinary tastes, especially their fondness for chocolate milkshakes and research books. Its story follows two hunters who begin as capable professionals but find themselves unprepared for the consequences of one favor. The description presents an adventure about confronting supernatural dangers while tracing how that unexpected choice changes the course of their lives.