Five years ago, due to a misunderstanding, Gu Nancheng hated Xu Anning for betraying him. He left her sadly without any explanation. Five years later, at a business reception in the Year of the Horse, he reunited with her, who had become an internationally renowned designer, accompanied by a little boy with exactly the same eyebrows as him. The little boy looked up at him and said, "Uncle, you look just like my dad." Gu Nancheng felt as if he was struck by lightning, and then he realized that he had missed her entire youth and missed her most difficult years. This story uses the classic combination of "reunion after a long absence" and "running with the ball + chasing his wife in the crematorium". The core theme is "misunderstanding, redemption of time and regret". Explore the huge regrets caused by a lack of trust and communication, and how to spend the rest of your life trying to make up for it. The male protagonist Gu Nancheng easily convicted the heroine due to his pride and suspicion, resulting in five years of separation and the hardship of raising the child alone. The existence of the child is the most powerful counter-evidence of the misunderstanding and the amplifier of his regret. The reunion is not the end of the story, but the beginning of his long road of redemption. What he needs to face is not only the broken heart of the heroine, but also the missed growth time of the child. "Reunion" in the Year of the Horse means meeting again after the passage of time. The theme emphasizes that trust is the cornerstone of relationships, and impulsive decisions may cause irreparable damage. True repentance requires double the patience, sincerity and dedication to make amends, and the right to forgive or not is always in the hands of the person who has been hurt. The road to salvation is long and difficult.