4. World star and multi-entertainer B is actually in a lot of debt
D is loved in Korea and all over the world for his various activities. As it turned out, he's actually sitting on a ton of debt from failed investments. His agency believes in his worth as a product and continues to invest in him but D has always been fearless when it came to opening new ventures so his company is keeping their eyes peeled for the next time Rain feels like carelessly opening another business.
(There is only one other world star aside from Psy, and if it isn't Psy, who could it be?)