Xiao Lin, a top powerhouse in the apocalypse, is betrayed and killed, then transmigrates into the body of a foolish illegitimate son in the Great Jing dynasty. He arrives with dual lightning and fire abilities and a heaven-defying pocket dimension. Its spirit spring and fertile land, where time flows at an extraordinary rate, lay the foundation for his plans to lie low and be reborn. To avoid repeating the mistakes of the apocalypse, he pretends to be an idiot by day while secretly nursing his body back to health and stockpiling supplies. He is calm, calculating, and ruthless when it comes to killing.
During a chance encounter by the river, he saves Su Wenyuan, a gentle young man who has been mistreated by his stepfather and stepmother and nearly drowned. The boy has an extraordinary gift for medicine, but as a dependent living under someone else's roof, he has endured endless hardship. Sensitive and timid, all he wants is to study medicine, survive, find his family, and go home. Xiao Lin falls for him at first sight, and his frozen heart melts completely. From then on, he keeps the boy safe under his wing.
He makes a fortune through farming and business, helps the boy escape his miserable life, and gives him everything he needs to study medicine and learn from a master. He enters government through the imperial exams and carefully advances his career, countering the schemes of his legitimate elder brother, Xiao Mo, while clearing away street thugs and business rivals. Under Xiao Lin's protection, Su Wenyuan sheds his timidity, masters medicine, and becomes a renowned healer who saves lives.
From feigning idiocy to rising to the top of the imperial exams, from silent protection to pledging their lives to each other, Xiao Lin and Su Wenyuan save each other. Together, they break through the barriers of class, settle their scores with their enemies, and ultimately find success in their careers and reunite with their families. They spend their lives together in the Great Jing dynasty, creating a legendary love story that everyone envies.
