I just remembered... "Accompanied by a Fool To Do Farming". there ML grew up normal, but then an accident happened and he became a fool (his mental growth was about 6 years old), then somewhere probably by the middle of the story he was hit on the head and he became normal. But the trace of this remained when he was a "fool" he sometimes had pains in his head, and when he recovered, his pains only became stronger somewhere in the end he was cured by a miracle doctor.

Please help me, I can't find the novel in any way. Ml is blind. Ms after transmigrations finds herself in a ship and buys the main character, who was in shackles, and he is also an idol or an actor. books, Ml and ms are related by marriage. Ms is also a white moonlight or a replacement for the main character of the book for the gong of the book.