Kurosagi

Kurosagi presents as a corporate professional: a full suit, square tinted glasses, short pale hair, and a heavy squared jaw. The one flourish is his necktie, which is cut in the shape of a kendama.

Money appears to be the only thing Kurosagi values, and he will rob the person signing his paychecks and then discard that person the moment the arrangement stops paying out. There is a snobbery layered on top of it. Despite building his side business entirely on counterfeits, he holds copies in contempt, and people with copying powers along with them, Phantom Thief included, on the theory that an imitation can never match what it was taken from.

The assistant's job came with access to the company's toy blueprints, and Kurosagi abused it, leaking designs to bootleggers whose knockoffs beat the genuine articles to market by almost nothing. Sales cratered, the CEO fell into a slump, and Kurosagi was put in charge of finding the leak.

Other employees went over his head and asked heroes to look into it. He tried to wave them off, but they kept digging, and suspicion landed on him fast. When they came back with questions they walked in on him stealing the master list of blueprints on his way out of the company for good. His denials collapsed within moments and he ran instead, dropping the building's shutters behind him. Phantom Thief overwhelmed him anyway. He was fired and arrested.