Gu Ying Seeks Shen: Tracing the Mystery is a gripping suspense novel featuring two male leads. It follows forensic doctor Gu Mingyuan and the mysterious private detective Lin Shen as they work together to uncover the truth behind the “Madame Butterfly” organization. Twenty years ago, Gu Mingyuan’s father disappeared in a bizarre case, leaving behind only a body marked with a butterfly insignia. Now, a similar case has occurred, and during his investigation Gu Mingyuan crosses paths with Lin Shen, whose identity is shrouded in mystery. From mutual suspicion to fighting side by side, the two gradually uncover a shocking conspiracy involving human experimentation. As the investigation deepens, they discover that Gu Mingyuan’s father was a key researcher for the organization, while Lin Shen was a mole he had planted within it. Through one life-or-death crisis after another, the two men build a profound bond of trust. Yet the truth is far crueler than they imagined: Gu Mingyuan’s father died protecting the research materials, and Lin Shen gave his life to protect Gu Mingyuan in the final moments. This is an adventure about truth, redemption, and sacrifice, in which two men give their lives to show what it means to protect someone. Amid layers of fog, only the butterfly’s secret message can guide them to the ultimate truth.
