Shen Yihan, heir to the Imperial Group, suffered devastating blows at home from the start. After losing his mother and aunt and being betrayed by his father, he endured in silence for years. When his grandfather died, he smoothly took over the Tisen Group and became the master of Snakebelly Manor. But faced with doubts from within the group and his father's relentless attempts to destroy him, he decisively cast aside family ties and gave his father a resounding slap in the face. Alongside the Lu and Fu families, he became one of the “Three Titans of Tijin.” With industries spanning every sector and powerful alliances between business and government, they were unstoppable. In the end, Shen Yihan became the richest man in the country and firmly established himself as head of the Tisen Group.
When it came to his younger sister, Shi Ning, who had grown up by his side, he doted on her beyond measure. As the princess of the Tisen Group and Shen Yihan's precious darling, she always got the very best. Anyone who dared lay a finger on her would find that death was a luxury. When he learned that he and Shi Ning were not related by blood, he fell in love with her. How would Shen Yihan choose in this forbidden love born of mutual pining? Would the promise they made that summer fade away with time?