Medical student Ruan Ruan becomes rabbit spirit. She meets a cold and blood-sucking fox spirit. First time meeting she died under his dagger. Who would guess that she would come back alive the next day? In order to survive in this supernatural world full of masters, she became the fox’s follower. She does laundry, cooks, and calms him down when the looses his temper. During full moon she becomes his portable blood bank. So much worrisome matters…