At the same time, Wei Yi found an iron box in the demolished old house, which contained a letter addressed to her birth mother. There is only one photo in the letter. A strange man is holding his mother. They are very sweet. Wei Yijian believes that he is not his father's own flesh and blood. Wei Yi decided to leave home and go to Shaanxi to find the "biological father" he had never met. But what I didn't expect was that Xiaomi, a playful new sister, also caught the train. Wei was surprised and decided to sneak out of the car and get rid of this little tail.
Wei set out alone. He was hungry and cold, and was caught stealing bread. As a result, he had another heart attack and was absurdly sent to a mental hospital. After struggling to escape, Wei Yi came to an ancient town, but found traces of Xiaomi in the shed of a wandering artist. Wei Yi has some regrets, but he also missed the opportunity to save Xiaomi in hesitation. Wei Yi continued his camping trip. He hitched a ride with a lame man. In contact, Wei Yi eliminated his hostility towards men. Unexpectedly, the wandering artist appeared on the road again. Wei Yi made up his mind to finally rescue Xiaomi, but forced her to the train home. As a result, she was stopped by a limping man. The man severely taught Wei Yi a lesson, but Xiaomi always defended his new brother. Wei Yi's repressed emotions finally collapsed and she cried all night. ...
The next day, accompanied by Xiaomi, Wei Yi set foot on the journey again. Along the way, the two people have constant contradictions. Xiaomi, a teenager, imitated Wei Yi and knelt down to respond to his rudeness. Wei realized his problem from the beginning, and he tried to communicate with this girl who was ten years younger than himself. The two took a couple's car on the road. The savage couple quarreled all the way, but Wei Yi found something strange on the way. They are drug dealers who smuggle precious medicinal materials. During the argument, Wei Yi fell ill again. In a trance, he found that Xiaomi took out a paper frog and saved himself. They were forced to flee into the deep mountains. Xiaomi was injured, and Wei Yi almost got lost. Inadvertently, he found that the little frog was actually painted with first aid instructions and the phone number of his father Wei Gang. Wei Yi was puzzled and moved.
Finally, the exhausted two were rescued by an eccentric female photographer. On unhappy days, Wei Yi and Xiaomi try their best to make the reclusive female photographer feel warm. Finally, Wei Yi and Xiaomi happily came to Shaanxi and his "biological father" home. Wei Yi met a little boy who was fishing when his "biological father" was not at home. The three children forgot everything and caught fish and played in the sunset, feeling like brothers. Finally, Wei Yi learned that the boy was the son of his "biological father". At this time, Wei Yi is no longer so radical and reckless, and he finally has his own choice.
When the sun is about to set, Wei Yi carries Xiaomi on his back. But this time the destination is their long-lost home.