It is said that the relationship between Bing Yun and Sean reveals that ice cloud grew up as the son of Yan, a senior expert in the Institute of Forensic Medicine, and seems to have nothing to do with Sean. In fact, he is Sean's own grandson. Under the secret arrangement of the Qing emperor, it is said that ice cloud went to Beiqi as a spy and was caught for revealing his identity. Fan made a leisure trip to Beiqi and traded Sean for ice cloud. All the people and things began to connect.
In a hidden cave, Sean, who was dying, told Fan Xian some secrets, such as that he had a grandson and Ye was a temple man. After leaving the temple, he settled in Nanqing, married into the royal family of Nanqing and had a son with the Qing emperor. As soon as he came back, Fan Xian asked ice cloud to find out how many people were his age. Ice cloud says he is, and Fan is sure that ice cloud is Sean's grandson.
According to the follow-up story of Joy of Life, we know that ice cloud is actually Sean's grandson! Pingping Chen designed Yan to raise him, and turned Yan Bingyun into a pawn who hated the motherland but worked for the enemy, in order to revenge and anger Sean. When the friends saw this, they couldn't help but ridicule. They finally know why ice cloud's actor uses Sean Shaw, and he has the same surname as "Grandpa" Sean!
Conclusion: From the TV series alone, if Yan Hai really loves Yan Bingyun, he is really not a big head and very hateful. After all, their original purpose was just to use Yan Bingyun! Ice cloud, who was mentioned in the original work, took over as the new president of the Supervisory Institute after he went offline in Pingping Chen! It is said that ice cloud has served his country all his life. Little did he know that Beiqi, which he hated, was his real motherland. This is really too bad!