To break free from the constraints of her birth family, Ming Jiao signs a one-year contract marriage with He Danjing, an abstinent CEO. By day, she works as his executive secretary, using her extraordinary memory to repeatedly resolve the company's crises. By night, he is her secret husband, always having her back whenever her family gives her a hard time or someone frames her. What begins as a mutually beneficial arrangement gradually turns into genuine affection. The cold-faced CEO becomes fiercely protective of his wife, while the clear-headed, innocent little rabbit finally dares to lean on someone. When their contract expires, however, the two happily walk into the civil affairs bureau together. This time, they are getting a real marriage certificate.