Ye Yuyi, who has always been dependent on her mother, accidentally received a letter of instruction signed with her father's name in college. When she wanted to ask about her mother, she learned that her mother was missing. The only message was a card signed by his father. Let him act according to the instruction letter. According to the instruction letter, Ye Yuyi embarked on a beautiful life of being a mascot in the horror world and finding someone to accompany him for life.