Sun Cui, a disciple of Confucius, refused to be hired by the princes because of his father's influence since childhood. His father Lutz was unfortunately involved in a conspiracy because he worked for a vassal state, so Cui Zi hated being an official since he was a child, so he refused all the vassal states that hired him. However, too many people come to see him every day, which seriously interferes with Cui Zi and his mother's life, so he decided to live in seclusion in the mountains and stay away from the world.

As we all know, Luz is one of Confucius' most proud students, and Confucius' love and attention to Luz is self-evident. Lutz is completely different from Confucius and most of his disciples. Confucius is strong, outspoken and likes to show off, but all this can't stop Confucius from loving him. Confucius is sometimes a little rebellious.

Lutz later went to defend the country and became an official. But because of the coup, Luz was killed in it by the enemy. This made Confucius very sad. Confucius was over 70 years old at this time. After learning the news of Luz, Confucius burst into tears. But it is gratifying that Luz has a son named Cui Zi who is 13 years old. Cui Zi completely inherited all his father's characters, naive, straightforward and burly. When Cui Zi knew who killed his father, he clamored for revenge for his father, so Confucius asked him to improve his ability again.

Cui Zi is an obedient boy, so he honed his swordsmanship day and night and expanded his knowledge. Finally, Cui Zi found the enemy who killed his father and finally avenged his father. It was this that made Cui Zi famous as a vassal. All the vassal kings thought that Cui Zi was an available talent and wanted to bring him under their command. But after what happened to his father, Cui Zi hated being an official. So he refused all the governors' invitations!