Married randomly to escape forced marriage; my guard is the tycoon's savior！

Running from a marriage she never wanted, Li Xingyue blurts out a desperate proposal to a quiet “security guard.” He says yes—for reasons of his own. The man under the uniform is Gu Mohan, the wealthiest figure in Longchuan, hiding in plain sight while searching for the girl who once saved his life, the “Little Tail” he never forgot. To pacify his grandmother, Gu Mohan agrees to a marriage of convenience. Xingyue believes she’s supporting a struggling husband, shielding him from ridicule and carrying their humble home on her shoulders. Meanwhile, he silently clears the traps set by her family and keeps his fortune out of view. As crises close in, their partnership hardens into trust—and something warmer. Clues from the past begin to surface, drawing a fragile line between their present bond and a childhood promise. But secrets have an expiration date. When masks drop and names are revealed, whose faith will hold? Is this a marriage built on lies—or the second chance both of them have been waiting for?