Winning Over My Shadow Guard

[I changed a character's name. Maybe I'll start this year.] Shen Zhong transmigrates into a book called The Reborn Legitimate Son, becoming the ridiculously awesome male lead of the same name, the legitimate grandson of Shen Jitang, an important court official. But on his very first day, he kills the story's biggest villain, and a perfectly good, five-million-character, plot-driven epic is just... cut! short! Shen Zhong thinks, I haven't even had the pleasure of getting reborn and taking revenge through face-slapping yet. Is the whole book really over already??? But it doesn't matter. We can drop the political intrigue and follow the romance instead. For example, that shadow guard. How about we have a heart-to-heart? Shen Ying has always been loyal and restrained, known as the Shen family's sharpest blade. Then one day, he realizes that the young master he's watched grow up has developed improper designs on him! Should he report this to his master? Hmm... Better not. The young master might get beaten. I'll quietly try to straighten him out myself. The result? He ended up twisted around himself. Note: The protagonist is the top, and younger than his partner. Loyal shadow guard bottom X young master top, who's been devoted to flirting for a hundred years Theme: Only by moving forward bravely and pursuing what you want can you obtain it.