Living-in son-in-law Zhu Jun has long been looked down upon by his father-in-law and treated coldly by his wife, enduring it all silently just for his daughter. When his daughter falls and gets injured requiring a blood test, he accidentally discovers a blood type mismatch. A paternity test confirms the child is not his biological daughter, and he also catches his wife having an affair with her best friend's husband. Instead of aggressive revenge, he feigns a divorce to focus on his career, rises up against the odds all the way, and meets his true love. Later, he openly lays bare the past, lets go of the resentment in his heart, still treats Mengmeng kindly, and finally wins respect, harvesting stability and happiness.