Are Rong Jiashang and Feng Shizhen brothers and sisters in the City of Time?

Rong Jiashang and Feng Shizhen, the city of time, are not siblings.

Jia Rong is the son of a fake Rong Dingkun, who is a gentleman in rong family. Because he was caught with the second young master when he was young, he survived and the second young master died, so he was resented by the second young master's mother-in-law. Under the influence of his mother-in-law's family, Rong Dingkun sent Jia Rong to the military school at a young age, and it has been many years since he left. Rong family is a playboy on the surface, but deep down, it's not as simple as it looks.

He was skeptical about Feng Shizhen's arrival, so at first he always targeted Feng Shizhen, even with contempt in his words, but later he was conquered by Feng Shizhen's knowledge and attracted by her concern.

Because he grew up in Jia Rong, he didn't really care about him, so in the face of the first time someone really cared about him, although he took away his doubts, he still couldn't help falling in love with Feng Shizhen.

Later, he knew the purpose of Feng Shizhen. Although they misunderstood each other, justice and emotion in their hearts still outweigh everything. He stood on the opposite side of his father, and together with Feng Shizhen, he exposed his father's true face and got justice for the innocent people. Finally, he sold his property and joined the army, and Feng Shizhen later followed him. Two people joined War of Resistance against Japanese Aggression with a happy ending.