Jeon Jungkook is working as a psychiatrist at Arkham Asylum and he is assigned the most notorious villain called Joker. Jungkook is the only one who knows Joker's whole backstory which is why Jungkook refuses to take "No" for an answer ever since he fell in love with the sadistic psychopath. Explore the journey of how Jungkook became Harley Quinn and became Joker's love interest and accomplice.