I Became Zulong's Brother in Daqin

Traveling to the Qin Kingdom, predicting various historical events, and directly defeating Zulong! Whether to escape with Zulong or to help him, this is a difficult choice. Just when he was hesitating, Zu Long revealed his identity. So I am Zulong's biological brother? Now, neither of them can handle it anymore, what should they do now? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.