Help, the Marquis's Secret Guards Only Want to Farm.

To celebrate her internship as a full-time job, Meng Li drank two bottles of fake wine, fell into the water, and died. When he opened his eyes again, he became the secret guard of Xiao Hou, the head of the Hou Mansion. She, a modern person from the area governed by Newton, accidentally fell into the world of flying over the roof and walking on the wall. It was really hard for the child. Fortunately, the system is here. However, I am a secret guard, and you ask me to farm. Is this reasonable?