I Deduce That the Female Lead Likes Me [Transmigration]

Late-night death from overwork, Kou Shuang finds herself transported into a famous pitfall romance mystery novel. ——The female supporting character. Relying on her knowledge of the plot, Kou Shuang plans to put on a show. ——Prequel. Due to the nature of the world, Kou Shuang encounters several cases. (Kou Shuang's inner thoughts: Finally, I can cosplay as a detective, right?) ——QAQ can't figure it out. Kou Shuang feels envy and jealousy; how can Song Muxue be so smart, witty, and adorable? There must be some unknown flaw! After a series of investigations, Kou Shuang finally reaches a conclusion. 【Song Muxue's only flaw is that she likes me.】 Song Muxue: That's not a conclusion, bu...