What is the finale of Cookie Detective? Who's with whom?

Ruyi and Jixiang are together, and Yafei has been a rose in prison for two years. After he got out of prison, Zhang Zheng and Yafei were together. He was single, and so was Rosen. Lou Shanshan chose to leave, Lou Shiping was imprisoned, Frank was arrested and killed, Mao Tinghe was killed, and lawyer Li was shot by Lou Shiping's murderer. Zhang Zheng and Zhang Zheng both moved to Jixiang Detective Agency, and Ruyi's mother finally recognized Jixiang. (Is there any omission? )