Apocalyptic boss Su Miao unexpectedly transmigrates into a single mother, learning that her five-year-old son Su Yuyan will go astray in the future due to a lack of care. To rewrite the destiny of mother and son, she decides to start from scratch, making up for family affection with love and protecting the child with action. Relying on extraordinary courage and ability, Su Miao starts by delivering food, makes her way through the workplace and business world, achieves self-growth in adversity, and gets to know the child's biological father Xie Chen all over again. Facing one challenge after another, the family joins forces to break the deadlock, and the once sensitive and lonely Su Yuyan also grows into a sensible and heartwarming "little man" amidst love and companionship.