Quickly wear the cannon fodder to turn over and sing

Su Su has an ordinary appearance, ordinary studies, and an ordinary life. One day, she bound a system and traveled through the worlds to help cannon fodder counterattack their lives and collect merits to save their families. Wang Baochuan has been digging wild vegetables for 18 years, so let Xue Pinggui dig for 28 years to save his life. He should repay her with his body, but he is too ugly...