Crazy Diamond Is Unbreakable(クレイジー・D(ダイヤモンド)は砕けないKureijī Daiyamondo wa Kudakenai), also known as Crazy D (Diamond) Is Unbreakable, is the twenty-eighth and final story arc in Diamond Is Unbreakable. It narrates the climactic battle between Josuke and Yoshikage Kira, whose combination of Killer Queen and Stray Cat gives Kira a great advantage.