BenjiHartfyre

There is a book. Someone on Reddit read the original Chinese version and summarized the next book.

That's what Hao Ting was thinking.... But apparently Xi Gu's Aunt faked his death for some reason, and since Xi Gu lost all his memories, he became a different person. Many times with head trauma, a person can act younger than they actually are.

According to the books, that is him but he lost his memories from the car crash.