It's All about You... Tom & Mun

This book tells the story of Tom, an undercover corporate investigator, and Mun, 5 years ago a promising college student but now, after a traumatic coming out in his senior year, a scruffy, depressed, foul-mouthed and self-loathing drunk. After a tragic event, Tom and Mun's destiny slowly falls into place. With the help of Ae and Phun, a lovely gay couple since childhood, they grow closer to each other.
But soon all four of them are dragged into Tom's world, as they find themselves unexpectedly in the front line of a fierce war between multinational companies.