Auntie and You Have a Heart-To-Heart Connection, and You Are Playing Tricks with Your Auntie

(Completed) [1v1 + age difference of 10 years + system + male protagonist is a stupid idiot] Ning Wancheng died once and came back to life. She originally died of congenital heart disease, but was brought back to earth by a sudden "system". The system explained that the world she was in was actually a novel, and she was just an inconspicuous passerby in the background - she was saved so that she could save another person. That man's name is Zhong Ruoyu, and he is the second male lead in the book. Different from the common boss stories, according to readers' expectations, the second male lead should have been unpopular with everyone, but the author gave him the most tragic ending: depression and suicide. The cause of all this is that the male protagonist destroyed Zhong Ruoyu's company for the female protagonist, which indirectly led to the death of his parents in a car accident. Zhong Ruoyu, whose family was ruined, was not defeated and wanted to make a comeback on his own, but was forcibly sent to a mental hospital by the male protagonist. In the end, he reached a dead end in endless humiliation. The system said that Zhong Ruoyu was an important character and it could not directly control his resurrection. It could only place its hope on Ning Ruocheng. As a reward, the system will completely cure her heart disease and will also come with a large listed company that can operate autonomously. Ning Wancheng was confused when he heard it, but when the words "cure heart disease" entered his ears, all his hesitation disappeared. She nodded almost immediately: "I agree." So the system treated her heart disease and sent her back to the childhood of the second male lead.