Mary Morstan is a nurse working alongside Sean at the clinic. Despite Sean's unwavering commitment to his girlfriend Irene Adler, Mary finds herself falling for him. Determined to win him over, Mary resorts to sabotaging their relationship through various means. One fateful night, Sean attended a party at Mary's house, but then a moment later, his vision blurred and he fell unconscious. When he woke up, he found himself being tied onto a chair in a candlelit room. Mary was finally alone with him. Inspired by movie 'Miller's Girl' and song 'Boyfriend' by Dove Cameron.)