After I Became the Stepping Stone Kid in a Period Novel

(This story has two male leads. There are hidden circumstances behind the events involving the protagonist's father, Gu Qingshan, and his first wife. The protagonist's father would never betray his mother, so please don't read if that bothers you.) Modern doctor Gu Chen is transported into the period novel he read, Sweet Love in the Seventies, a story about a reborn heroine making her fortune. In the original story, the male lead, Gu Qingshan, comes from an intellectual family in Beijing and moves to the countryside with his seven-year-old son after his family falls on hard times. In the original plot, the reborn supporting female character, Lin Xiaomei, frames him, forcing him to marry her; the brigade secretary's daughter takes a liking to him and relentlessly pursues him; and a widow from their village falsely accuses him, nearly landing him with a charge of hooliganism. His golden finger, an ancestral jade pendant, is stolen by the heroine, who awakens a pocket dimension and uses it as her first step toward making a fortune. Meanwhile, the male lead's seven-year-old son, Gu Chen, is bullied mercilessly in the countryside, becoming timid and weak. After the supporting female character marries into the family, she abuses him to death. Now, he plans to change this tragic fate and gradually find happiness. Stay tuned to see how, on his first day at the village school, Gu Chen “accidentally” exposes a young intellectual who stole public property; how, during the autumn harvest, he uses a seven-year-old body and a twenty-year-old mind to defuse a crisis; and how, when a widow falls into the water, he makes his dad the least likely person there to jump in and save her. The first male character enters the story: Lu Zhixing, a young doctor at the commune clinic. He seems especially interested in Gu Qingshan and his son...