The protagonist of the story, a female teacher in Liu Family Village who continues teaching two lessons each afternoon despite the village's dire situation. She possesses a mysterious system that allows her to sell wild goods and maintain a balance of fifty thousand yuan. She is resourceful, planting vegetables in her garden and courtyard, and is known for donating wild vegetables to the village. She is married to Gu Cheng and has a young son named Gu Yanyan. She is cautious about drawing attention due to her system abilities and prefers smuggling through her system rather than trading with outsiders like Granny Li.