Fan Xian's elder brother was the Great Prince. The Great Prince had been stationed in Dongyi for many years and had made great contributions. He had once saved Fan Xian's life and taught him Tianyi Dao mental cultivation to help him recover. When Fan Xian needed help, he would not hesitate to lend a helping hand.

Fan Xian's younger brother was Fan Sizhe. In Joy of Life2, Fan Xian arranged for Fan Ruoruo and Fan Sizhe to go to Northern Qi to protect them and cooperate with Northern Qi. Fan Sizhe had been used because of the Baoyue Brothel incident. After realizing his mistake, he decided to leave the capital and go to Northern Qi. Fan Xian and Fan Sizhe were brothers. They had a close relationship.
According to the search results provided, it was impossible to determine if Fan Xian had a younger brother in Joy of Life. The search results did not mention whether Fan Xian had any information about his brother. Therefore, I don't know if Fan Xian has a younger brother in Joy of Life.
You might be asking about Fan Xian's younger brother, Fan Sizhe, in Joy of Life. Fan Sizhe was the legitimate son of Fan Jian, the assistant minister of the Ministry of Revenue. Unlike his brother Fan Xian, he loved money as much as his life, but his nature was not bad. He was extremely talented in doing business and was quick at accounting. Under Fan Xian's guidance, he also embarked on the path of " literary creation." In the movie, his classic lines were: " If I don't bully others, others can't bully me." "You're my brother, so you have to help me." "I'm the son of the Minister of Revenue, Fan Jian. My name is Fan Sizhe."
Fan Xian became the group's favorite in the development of the plot and was fought over by the Crown Prince and the Second Prince. He had some fanboys by his side, such as Wu Zhu, Fan Jian, and Chen Pingping. They all had special feelings for Fan Xian. Fan Xian was known as the strongest group favorite in history. He had six close female friends and four fathers who doted on him. In order to fight for Fan Xian, these fanboys launched a fierce battle of words and each used all their skills to protect and fight for Fan Xian. The Qing Emperor also had complicated feelings for Fan Xian. He had long known that Fan Xian was his son and had indulged him many times. He doted on him and treated him differently, showing his true feelings and love for him.
Fan Xian's younger brother was Fan Sizhe. Although they were called brothers in the show, they were not actually related by blood. Fan Sizhe was Fan Xian's half-brother on the surface. They showed their deep feelings in the play and were called the Fan brothers. Fan Sizhe was a second-generation heir. In the movie, he was portrayed as a rich playboy who loved money. However, as the plot developed, Fan Sizhe showed his talent in business and eventually became a wealthy businessman. He had a good relationship with Fan Xian and had not betrayed him. Fan Sizhe's ending was pretty good.
Fan Xian's senior brother was Senior Brother Leng. Senior Brother Leng was Fan Xian's eldest senior brother and also the temporary manager of the Third Bureau of the Overwatch Council. He had once tested poison with his body to protect Fan Xian and had prepared a self-defense suit and weapon for him. Senior Brother Leng showed his humorous side in the play. He was good at using poison and hidden weapons. He had conflicts with other places, but he had always protected Fan Xian.
Fan Xian had five brothers in name. One of them was his adoptive father's son, Fan Sizhe, who was not related to Fan Xian by blood. The other four were the Qing Emperor's sons, Fan Xian's half-brothers. They were the Crown Prince, the First Prince, the Second Prince, and the Third Prince.
According to the information provided, there were some female characters in the stories related to " Big Brother Villain " who had special feelings for Big Brother Villain. For example, in some plots, the junior sisters showed their love for the villain, Lin Xiao. For example, Junior Sister Rongrong said that she was only afraid of not being able to be with Eldest Senior Brother in this life, Junior Sister Yingying was not good with words, but she stole Lin Xiao's first kiss in public and promised to treat him to his favorite milk cake, and Weiwei was willing to exchange her happiness for Eldest Senior Brother's return. To a certain extent, these junior sisters could be regarded as the fans of the villain's eldest senior brother. They had deep feelings for the villain's eldest senior brother.
Fan Sizhe was Fan Xian's younger brother, but not his own. He was the half-brother of the protagonist, Fan Xian, on the surface. Fan Sizhe was born into a noble family. His father was an official of the court, Fan Jian, and his sister was a famous talented woman in the capital, Fan Ruoruo. Although he wasn't Fan Xian's biological brother, in the play, Fan Xian discovered Fan Sizhe's ability to calculate accounts and investment awareness, as well as his business talent. Fan Sizhe showed his pursuit of wealth and his vision for investment.
Fan Sizhe was Fan Xian's younger brother, but not his own. He was the half-brother of the protagonist, Fan Xian, on the surface.