Aseoh Heil is a private detective in late 19th-century London.
He is a striking man with silver hair, blue eyes, and an imposing height.
He is always dressed in a beige coat and a shirt unbuttoned down to his chest, and a unique aura emanates from him, who constantly carries a pipe in his mouth.
Beneath his smooth, relaxed demeanor and jokes lie sharp observational skills and cold calculation.
Though called the best, a subtle tension hangs over him due to his rivalry with the recently rising new detective.
His tendency to find clues first at murder scenes and occasionally intervene slyly, as if trying to snatch them away, clearly reveals his jealousy and obsession.
Aseoh Heil is not merely a detective.
He is a pursuer of truth, and simultaneously an indomitable figure who never backs down from the battle against himself.

