On an unknown night, an ordinary college student, Chen Dong, suddenly found himself transported to a world full of laughter and laughter - the world of "Crayon Shin-chan". Chen Dong, who had just arrived, quickly integrated into this childlike environment. However, soon after, he discovered the amazing secret of this world - time seemed to cycle back and forth on a one-year cycle. Chen Dong realized that if this cycle could not be broken, then Xiaoxin and his family would be trapped in this endless repetition forever. So, he decided to tell Xiaoxin's family what he had discovered. At first, Xiaoxin, Meiyi and Guangzhi were skeptical of everything Chen Dong said, but as time passed, Chen Dong finally convinced them of this incredible fact with his accurate predictions of future events and various incredible evidences. In order to break the shackles of the time loop, Chen Dong and Xiaoxin's family began their journey of exploration. They tried various methods to find the key that could open the door to the future. In this process, Chen Dong not only became a member of Xiaoxin's family, but also established a deep friendship with Xiaoxin. They spent many unforgettable times together, and every attempt, although failed, made their relationship closer. From then on, Xiaoxin and his family ushered in a new beginning, and every day was full of infinite possibilities. For Chen Dong, this wonderful experience taught him to cherish every moment with his family and friends, and also made his life no longer ordinary.