Yu-Jen Gwisin, commonly referred to as Mr. Imugi, is the main importer of illegal guns and weapons in San Andreas. He is rarely seen except for at his gun deals and occasionally alongside Madam Ming and Rising Sun insurance.
Not much is known about Mr. Imugi other than a basic knowledge of who he is affiliated with. He is one of the members of The Dynasty alongside Madam Ming and a few other masked individuals often present at his gun deals. He is often referred to as a shadowy and dangerous figure with a lot of influence and power since he controls the flow of all the illegal guns in the state.