Transmigrated into a Wasteland Novel, I Work Hard to Support My Wife

Top-tier bodyguard Gu Qingyan transmigrates into a post-apocalyptic ABO world, becoming a notorious scumbag Alpha, and is bound to a rather unreliable system that grows stronger by killing zombies. Faced with Su Wanqing, a small Omega worn down in both body and mind by the original owner, she chooses to protect her with warmth and tenderness. Su Wanqing goes from instinctive fear, to suspecting that the person before her has long since had their "soul swapped," and then to quietly falling for her. She crossed over, only to give her a lifetime of stability and devoted affection in this end times.