ep.21, 10:01-18:28, personally, the most romantic moments of Ouyang Wenshan and Jiang Huizhen, among all their scenes is the stargazing. he opened up about himself as Keane who was a prince before he was captured to be a chief guard. she also tells him about her feelings at the moment. later that we know, when Ouyang Wenshan returns to Babylon, a year later is 1791BC, he would make a weird mask dedicated to Jiang Huizhen, according to the constellation they last saw together, as their love momento. my wishful thinking, I was hoping he would stay as Ouyang Wenshan, and the same time, he bears responsibility to his own kin, he needs to ensure their safety and regain freedom. love is beautiful.