In the TV series Joy of Life, Sigu Jian did not kill the Shadow because the Shadow was a descendant of Dongyi's guardian. Sigu Jian's sister had raised the Shadow, so the Shadow could enter Sigu Jian's room as he pleased. In the original novel, the Shadow's true identity was the descendant of Dongyi's guardian. Sigu Jian's sister had taken him in and raised him. As Sigu Jian had seen his mother killed when he was young, he hated the Shadow's face. However, at his sister's request, Sigu Jian did not kill the Shadow. He only trained him to be a killer.

In Joy of Life, there were several reasons why Sigu Jian did not kill the shadow. First, the Shadow was Sigu Jian's younger brother. They had a deep relationship. On the day Sigu Jian massacred the City Lord's manor, he had let the Shadow go, hoping that he would grow into a new Great Grandmaster and provide another choice for Dongyi's future. Secondly, Sigu Jian believed that if the Shadow wanted to become strong, it had to become strong, ruthless, and cold-blooded. Thus, by slaughtering the city, he filled the Shadow's heart with hatred. A heart for revenge would make him even stronger. In addition, Sigu Jian had entered the Overwatch Council to use the Shadow's life to avoid causing chaos in the Qing Kingdom. In summary, Sigu Jian did not kill the Shadow out of his love and protection for his brother, as well as his desire for the Shadow to become stronger.
There were several reasons why Sigu Jian did not kill the Shadow. First, the Shadow was Sigu Jian's younger brother. They had a deep relationship. On the day Sigu Jian massacred the City Lord's manor, he had let the Shadow go, hoping that he would grow into a new Great Grandmaster and provide another choice for Dongyi's future. Secondly, Sigu Jian had a gentle side to human nature. He was good friends with Ye Qingmei and Wu Zhu, and he had deep feelings for the Shadow. The Shadow was his younger brother, his disciple, and his relative. Sigu Jian could not bear to kill him. In addition, Sigu Jian entered the Overwatch Council and became the shadow of the Sixth Bureau's manager. If he became the master of the Sword Hut, it might cause chaos in the Qing Kingdom and be detrimental to Dongyi. Thus, Sigu Jian chose to let the Shadow go, hoping that he would have his own space to develop.
There were two reasons why Sigu Jian did not kill the Shadow. First, Sigu Jian liked the Shadow. He saw him as his younger brother and wanted to protect him. The Shadow was very likable to Sigu Jian, so he was unwilling to kill the Shadow. Secondly, Sigu Jian hoped that the Shadow would become stronger. He had filled the Shadow with hatred by massacring the city. He believed that the heart of revenge would make the Shadow stronger. Thus, Sigu Jian did not kill the Shadow because he liked and hoped that the Shadow would grow.
Sigu Jian and the Shadow were two characters in Joy of Life. The Shadow was Sigu Jian's younger brother and also the son of the former Dongyi City Lord. When the Shadow was young, Sigu Jian had slaughtered his family. Only the Shadow had survived. In order to take revenge and protect himself, the Shadow worked hard to practice swordsmanship and eventually became Chen Pingping's personal guard. The shadow hid his identity. On one hand, he wanted to wait for an opportunity to take revenge. On the other hand, he was unwilling to communicate with others because he was young and had suffered a blow. Sigu Jian had deep feelings for the Shadow, which allowed him to safely escape from the massacred City Lord Manor. After the shadow's identity was exposed, it triggered various speculations and discussions.
Sigu Jian and the Shadow were two characters in Joy of Life. Sigu Jian was a sword arts expert at the Great Grandmaster level. He was considered an expert at the Grandmaster level. The Shadow was Qing Kingdom's number one assassin. He had outstanding assassination abilities and was revered as the number one assassin in the world. They were Great Grandmaster Sigu Jian's younger brothers. When Sigu Jian grew up in the drama, he was bullied and humiliated by his family. In order to take revenge, he cruelly killed his father and the entire family, leaving only the young Shadow to survive. Thus, Sigu Jian and the Shadow had different personalities and backgrounds. To be specific, Sigu Jian was a person who had been bullied, while the Shadow was an assassin who harbored hatred.
Sigu Jian and the Shadow were two characters in Joy of Life. Sigu Jian was an expert at the Great Grandmaster level. He was considered a grandmaster-level sword expert. The Shadow was Sigu Jian's younger brother and Chen Pingping's top assassin. The shadow hid his identity. On the one hand, it was to wait for an opportunity to take revenge. On the other hand, it was because he was young and had suffered a blow, so he was unwilling to communicate with others. Sigu Jian let go of the Shadow and allowed him to escape Dongyi safely because he was Sigu Jian's younger brother. Sigu Jian could not bear to kill him. Sigu Jian and the Shadow had a deep relationship. The Shadow was Sigu Jian's first disciple, and the two had a close master-disciple relationship.
Yes, the shadow in Joy of Life was Great Grandmaster Sigu Jian's younger brother.
Sigu Jian and the Shadow were two characters in Joy of Life. Sigu Jian was the Shadow's elder brother. They were the Great Grandmaster Sigu Jian's younger brothers. When Sigu Jian grew up in the drama, he was bullied and humiliated by his family. In order to take revenge, he cruelly killed his father and the entire family, leaving only the young Shadow to survive. Thus, there was a relationship of hatred and revenge between Sigu Jian and the Shadow. In order to take revenge and protect himself, the Shadow worked hard to practice swordsmanship and eventually became Chen Pingping's personal guard. Sigu Jian was a sword expert at the Great Grandmaster level, while the Shadow was the Qing Kingdom's number one assassin. He had outstanding assassination abilities and was revered as the number one assassin in the world. Their personalities and backgrounds were also different. Sigu Jian was a person who had been bullied, while the Shadow was an assassin who harbored hatred.
Sigu Jian was a sword arts expert at the Great Grandmaster level. He was considered an expert at the Grandmaster level. The Shadow was Qing Kingdom's number one assassin. He had outstanding assassination abilities and was revered as the number one assassin in the world. They were Great Grandmaster Sigu Jian's younger brothers. As Sigu Jian grew up in the drama, he was bullied and humiliated within the family. The Shadow hid his identity. On one hand, he wanted to wait for an opportunity to take revenge. On the other hand, he was bathed in blood by Sigu Jian because he was young. Sigu Jian and the Shadow were very powerful characters in Joy of Life. They each had their own unique skills and strength.
Sigu Jian and the Shadow were two characters in " Celebrating Years." Sigu Jian was the Shadow's elder brother. They were the Great Grandmaster Sigu Jian's younger brothers. Sigu Jian grew up in Dongyi and was bullied and humiliated by the clan. In order to take revenge, he cruelly killed his father and the entire family, leaving only the young shadow to survive. Chen Pingping had appeared at the critical moment. She had saved the Shadow. From then on, the Shadow had hidden its identity and was loyal to Chen Pingping, hoping that one day it would be able to achieve its goal of revenge. Thus, Sigu Jian and the Shadow were brothers. They played important roles in the play.