Wen Yan is a beta with pseudohormonal cycles. While retrieving his late brother’s belongings in Qing City, his cycle arrives early. Forced to postpone his return, he checks into a hotel, only to be given the wrong key—leading him straight into the room of a top-tier alpha in rut. The alpha’s stamina is inhuman, relentless. For seven full days, they’re entangled. By the end, Wen Yan, nearly broken, limps away. He never expects to see the alpha again—until a marriage proposal arrives. Wen Yan agrees. * Lin Chuanwu, youngest heir of the Lin family, is ruthlessly domineering yet devastatingly handsome. After taking over Lin Corporation at a young age, a business trip coincides with his unexpected rut—where a beta spends seven days with him. His chronic headaches inexplicably ease in the beta’s presence. The moment he tracks Wen Yan down, he demands marriage. Post-wedding, Wen Yan proves soft-spoken, obedient—yielding to every desire. Lin Chuanwu spoils him rotten, granting his every whim. Just as he believes their bond deepens, he discovers Wen Yan harbors feelings for another—a man with eyes eerily like his own. He was just a replacement. When exposed, the beta vanishes without a word. Lin Chuanwu survives two ruts before scouring every corner of Jing City, finally locating Wen Yan in a remote countryside house— Right as his third rut looms. * Rut-driven alphas are possessive, obsessive. “Baby, do you recognize who’s fucking you now?” “Could he ever make you feel this good?” The beta, vision blurred, is beyond words… * Gentle, shy uke (married) vs. controlling, insatiably possessive seme. MPREG in later chapters.