Transmigrated: Becoming The Protagonist's brother

Sam, just another 18-year-old student enjoying his vacation while indulging himself in novels. While exploring the dark alleys of Webnovels, he stumbled upon a novel not very popular, but after reading the synopsis, Sam became extremely intrigued by the book and made the decision to give it a shot. Little did he know, what he was about to read was going to become his worst nightmare. .... " Why? Why dammit.!! " " You bastard, you ruined my entire life. " After being tricked into reading an NTR novel, Sam became extremely angry, so just like any other angry reader he decided to trash the author in reviews. (If you like it so much, why don't I let you experience it first hand) " What..? " .... As the protagonist's elder brother, Sam decides to babysit him in the most horrendous way possible. Note:- - No NTR, no Yuri - MC is a total degenerate and hella overpowered