Joy of Life Sean revealed his secret in episode 41.

Sean revealed his secret in the 41st episode of Joy of Life.
Xiao En's secret was that he met Ye Qingmei in the temple and obtained the martial arts manual and pills. He told this secret to Fan Xian, but Ye Qingmei asked him to keep it a secret because revealing the location of the Temple would bring about a great disaster. In order to protect Ye Qingmei's beliefs, Xiao En chose to keep his mouth shut.
Joy of Life Sean's secret was about the temple. Thirty years ago, Xiao En and Ku He had gone to the temple and met the little fairy, Ye Qingmei. They had obtained martial arts manuals and pills. This secret was the most important part of Joy of Life, and it was also Fan Xian's motivation to find the Temple. Xiao En and Ye Qingmei were siblings in the movie, and they had a deep relationship. Ye Qingmei had increased the Qing Kingdom's overall national strength through the establishment of the palace treasury and the prosecutor's office and helped the Qing Emperor. Xiao En had kept this secret until he was about to die.
Sean's secret was about the temple. Xiao En knew the location of the temple and had seen Ye Qingmei come out of the temple. He told Fan Xian this secret, but at Ye Qingmei's request, he could not reveal this secret. Revealing the location of the Temple might bring a great disaster to the world. Therefore, Sean's secret was related to the temple.
Xiao En's secret during the celebration was about the location of the temple and Ye Qingmei's existence. Xiao En knew the location of the temple and had seen Ye Qingmei walk out of the temple. He told Fan Xian this secret, but at Ye Qingmei's request, he could not reveal this secret. Revealing the location of the Temple might bring a great disaster to the world. Xiao En had kept this secret all this time and only told Fan Xian before he died. Although the specific use of the secret was not mentioned, it could be speculated that Xiao En's secret might be related to the power of the Temple, Ye Qingmei's identity, and related martial arts manuals. The specific use needed to be understood by watching the "Celebrating Years" series.
Xiao En was a character in Joy of Life. He was a powerful official of Northern Qi and was in charge of secret intelligence. He had been captured and imprisoned by Chen Ping for 20 years. He was filled with hatred for Chen Ping and her accomplices. After Xiao En was seriously injured by Lang Tiao, he told Fan Xian the secrets of the Temple and Fan Xian's background. In the end, he died of blood loss. Xiao En's existence was a hindrance to both the Qing Kingdom and Northern Qi because he had contributed greatly to Northern Qi's intelligence. But to the Qing Kingdom, he was an obstacle to the Northern Expedition. Northern Qi also did not tolerate Xiao En's existence, because he could become a new power and threaten Northern Qi's rule. Xiao En and Fan Xian's mother, Ye Qingmei, had once explored the Temple together, but they had been captured by Ku He. Chen Pingping had arranged for Fan Xian to escort Xiao En back to Northern Qi and let him reveal his background and political schemes.
Xiao En was a character in the TV series " Joy of Life." He was the person in charge of Northern Qi's secret intelligence. He was also Shang Shanhu's foster father and Zhuang Mohan's younger brother. Xiao En was once the leader of the spies during the Northern Wei Dynasty, responsible for placing spies. He and Ku He were sent to the north to search for traces of the temple, but in the end, only the two of them found the temple. In the play, Xiao En was captured and imprisoned by Chen Pingping for 20 years. But before he died, he told Fan Xian all his secrets. According to the plot, the biggest secret Xiao En had told Fan Xian before he died might have been the location of the Temple. However, the specific secret content was not mentioned in the information provided.
Xiao En was a character in the TV series " Joy of Life." He was a powerful official of Northern Qi. After being captured by Chen Ping, he lost his status and was later rescued by Fan Xian. However, because he hid the secrets of the Temple, he was chased by Lang Tiao and Daoist He. In the end, he was rescued by Fan Xian after being seriously injured. However, he died from excessive blood loss. Xiao En was Fan Xian's benefactor and also Ye Qingmei's father. His death had an important impact on the plot.
Xiao En was a character in the TV series " Joy of Life." He was the person in charge of Northern Qi's secret intelligence and was known as the devil. Sean was a ruthless character who killed people like flies, but he was very concerned about his family and grandchildren. He had been captured and imprisoned by Chen Pingping for 20 years. In order to protect his family, he had changed his name and told Fan Xian all his secrets before he died. Xiao En was also one of the first people to enter the temple. He had a special relationship with Ye Qingmei. However, Sean's specific story and character development needed to be learned by watching the TV series Joy of Life.
In Joy of Life, Xiao En was in charge of Northern Qi's intelligence. He was the leader of the Tiqi, the predecessor of the Jinyiwei. Xiao En had gone through a dangerous journey to find the temple and promised Ye Qingmei to keep this secret. However, at his son's wedding, he had been poisoned by Fei Jie, the head of the Third Bureau of the Inspectorate. He had been captured alive by Chen Pingping and imprisoned in a prison underground of the Inspectorate for more than twenty years. In the end, Xiao En was heavily injured in the battle with Lang Tiao and Friar He. Before he died, he told Fan Xian the secret he had hidden for many years. Xiao En's death was related to the secret he knew. This was also why Nan Qing and Northern Qi wanted him dead.