Traveled to ancient times and became a cheap little dad

Jiang Yun, a soul traveler with a big imagination, aspires to be a handicraft expert in ancient times, but his hands are disabled. Ling Yun, the father of 4 children, fell in love with Jiang Yun at first sight after becoming a widower. What? Jiang Yun is the murderer who killed the mother of his children? ...