Jiarong, who works in a remote mental hospital, is a rare male nurse. He has never had a relationship in the past 29 years, but because of his talent, he is always dumped after having his first relationship with his girlfriend! One day, he met an old man who was dementia during the day but could fuck the female nurse at night! Jiarong immediately knelt down and begged the old man to accept him as his apprentice. After verifying Jiarong's wisdom, the old man began to teach various skills step by step.