Married to Male protagonist's Uncle

This story is adaptation novel all credit goes to original novel.
The headlines bring shocking and mind-boggling news.
"Taehyung boarded Movie King Namjoon's sports car, and the duo are suspected to be dating!"
"Namjoon and Taehyung entered and left the same condominium. They are confirmed to be staying together."
"Screw off, these blind bastards. He's my biological father!" Taehyung fumed.
Jungkook, likewise, reacts with a similar reaction. He spits. "Whoever posted these will be blacklisted, never to be seen again in the media industry! I shall see who else has the guts to spread rumors about my wife and father-in-law."
Jungkook is the most affluent man on earth and this places him at the apex of the world order. However, he is troubled by the fact that the Movie King Namjoon, despite only being a few years older than him, is his father-in-law.