Worse he's a Chaebol, and families like those can pretty much get away with more than just white collar crimes. Literally as long as they don't toe their local mobster or local bought off govt officials bottomline, they will look the other way. You don't understand just how much these families control in Korea Republic. These conglomerates they run influence every aspect of their society, ex. Samsung. It is also usually older men around the grandfathers age who still run a majority of them. They often craft public images to make themselves appear appealable to the ruled class, but with enough money like them you can easily manipulate how the general public may perceive you. It's takes a herculean effort to hold members of that class responsible for things they do. I'm not surprised the grandfather struck now. He sees people as objects, his grandmother probably held enough influence (and shares) to keep him at bay. When Grandma passed Taesung inherited everything of hers, there's no way he wasn't going to strike. After he hears Taesung's Mum is in hospital he came over like a shark smelling chum in the water, the plan was probably in motion from then. This is why she told Mum to take the Taesung & Haebom away to another country. His connections could still help him figure out where they would be but abduction would be trickier and more risky for him. Think of it this way, if something like Burning Sun could take place for so long and for govt officials to have found to be involved how hard can it be for him to do this to one person. EASY. With the way society is right now I'm not surprised Chaebol families like this are now wielding power like the once used to before govt crackdowns years ago.
But didn’t the author make his dad some big shot industrialist too??? And didn’t his mom also make her own company??? Why did he hide everything from them when he found Haebom and just fucked him in the hotel for a week straight??? Like is he really that dumb or the author thinks WE are dumb??? Why did he try so little to find and resolve the issue, cause he ought to know Haebom Won't up and live for no reason??? It's like reading this is killing off my braincells

His grandfather is not a king or a president of a country??? Like WHAT is this big ass plot hole????