Flash Marriage, Exclusive Love: Your Billionaire Husband follows the whirlwind marriage between Su Ning, the eldest daughter of the Su family, and Lu Yanshen, a billionaire. A third-generation heir with immense power and wealth, Lu Yanshen is almost domineering in his possessiveness toward Su Ning. He draws her under his wing in his own way and showers her with extravagant affection.
Su Ning once had feelings for her ex, Chi Yu. That past fuels Lu Yanshen’s jealousy and also makes their relationship grow warmer as they test each other. Lu Yanshen’s close friend and brother, Lu Wenjie, often witnesses the ups and downs of their romance, while Su Ning’s best friend, Shangguan Xi, is her steadfast emotional support. In addition, Lu Yanshen’s ex, Su Yu, makes occasional appearances, bringing complications to the story but only highlighting his unwavering devotion to Su Ning.
The story follows the newlyweds as they adjust to life together. Amid interference from love rivals and exes, as well as family troubles, they gradually lower their guard. What began like a contract becomes a deeply committed love, in this urban romance brimming with possessiveness and devotion.