I Toyed With My Younger Brother and Left Him, but He Became a Yandere Big Shot

(Sweet on the outside, dark on the inside male lead + healing a lovesick yandere + rekindled romance + a sweet winter romance) A younger, lovesick wolf-dog male lead vs. a mature, levelheaded heiress Everyone in their circle knows that Yun Shu, the only daughter of the Yun Group, has a younger guy by her side, six years her junior. Not only is he devastatingly handsome, but he has eyes only for Yun Shu. He comes from a tragic background, yet Yun Shu dotes on him endlessly, cherishing him as if he might melt in her mouth or break in her hands. Later, Yun Shu notices that the little cub she raised is looking at her in an increasingly strange way. Then one day, he pins her in his arms and murmurs, “Sis, I like you. Could you like Xiao Ji too?” Shen Ji once naively believed that if Yun Shu accepted his advances, he would finally have her all to himself. Instead, overnight, Yun Shu abandoned him. She crushed his pure heart with her own hands and tossed it into the mud, where anyone could trample it. When they meet again, he is a rising star in the business world, elegant and distinguished, with countless women around him, yet not one can catch his eye. Everyone says the cold-faced King of Hell, Shen Ji, has no interest in women. In the dead of night, the man corners Yun Shu step by step, his eyes bloodshot. His words are harsh, but his eyes brim with wounded indignation. “Don’t you hate me? Then why keep showing up in front of me!” Later, a wedding band appears on the man’s ring finger. Someone once asked him what the proudest thing he had ever done was. Everyone assumed it was building his business empire from the ground up. The man lowers his eyes and gently turns the ring on his finger, his gaze tender. “The proudest thing I’ve ever done was make her my wife.”