Xia Yan, a senior high school student of Balsam Pear × Qi Zheng, a handsome and funny policeman, is a novel about men and women. The first chapter is in reverse order and the other chapter is about realistic micro-reasoning investigation, and later involves some abnormal world settings. It mainly focuses on the perspective of the male protagonist (don't go into detail, the author's logical thinking ability is not strong). It's eight years older, Shuangjie, HE. The extra chapter will fill in some loopholes in the main text, and you don't need to read it (the work label is wrong! This is an article written in the past year!)
