There are quite a few. One could be about a boy who shows strange behaviors and knowledge that his parents think can only be explained by reincarnation. Another might involve a boy who dreams of past lives and his parents start to believe it.
Well, you could have a story where the boy has memories of events he couldn't have experienced in this life, and his parents are convinced it's because he's reincarnated. Or perhaps a story where the boy has skills or talents that seem out of place for his age and background, leading his parents to believe in reincarnation.
There are many possibilities. Maybe the boy has an uncanny connection to a particular place or person from the past, and his parents think it's a sign of reincarnation. Another story could be that the boy starts speaking a language he's never learned before, which convinces his parents he's the reincarnation of someone who knew that language.
Chapter 411, "You Really Hold a Strong Grudge", is the clearest early answer because it turns Hua Country's situation into a concrete plot event. It opens with The lead director, who understood the entire process, had an...
Chapter 233, "Individual, Ten, Hundred, Thousand... Million, Ten Million, Damn!!!", is the clearest early answer because it turns Tianyi's situation into a concrete plot event. The chapter turns that into something concrete by moving from [What the hell, what's this about life span ending??
Chapter 338, "The Adulterer is Far on the Horizon, Yet Close Before the Eyes", is the clearest early answer because it turns Li's situation into a concrete plot event. Early on, Tang Jinyu, dressed in a light apricot Cheongsam, sat indifferently....
Chapter 210, "Are All of Jiang Li's Fans Hidden Big Shots?", is the clearest early answer because it turns Miss Jiang's situation into a concrete plot event.
Chapter 463, "Even if it's a Wild Boar, I'm Willing!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from The evening glow gradually bathed Dragon Ridge Island in a dazzling...
Chapter 587, "Has He Also Become a Part of the Play?", is the clearest early answer because it turns Isn's situation into a concrete plot event.
Chapter 137, "Lai Fu's Death Has Another Cause", is the clearest early answer because the violence around Aunt Ying becomes final instead of hypothetical. Early on, Jiang Li personally went to Lai Fu's tomb and performed a small....
Chapter 306, "I Believe Whatever Miss Jiang Says!", is the clearest early answer because it turns Jiang Says's situation into a concrete plot event.
Chapter 669, "My First Love Sister Who Died Young", is the clearest early answer because it turns Xi Yang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Bang," the door closed, but Chen Qijun's words lingered in Tai Fan's...
Chapter 265, "This Time You Must Help Me", is the clearest early answer because it turns Weibo's situation into a concrete plot event.