Captain Cai
In the drama Under the Moonlight (风月锦囊), the role of Captain Cai is portrayed by actor Zhai Yujia. As a key figure in maintaining law and order, Captain Cai is depicted as upright, courageous, and exceptionally clever. He frequently collaborates with the protagonist Luo Shu (played by Hu Bingqing) and others to solve complex cases.Captain Cai shares both professional camaraderie and personal friendships with characters like Qi Menglin (played by Zhai Zilu) and Han Muzhi (played by He Peng), creating dynamic and engaging storylines. His presence not only adds tension and excitement to the plot but also provides insight into the legal system and the warmth and challenges of human relationships in ancient times.