Volume 43

Enigma Is a Mystery! (エニグマは謎だ!) is the fifteenth volume of Diamond is Unbreakable and the forty-third volume of the JoJo's Bizarre Adventure manga. It covers most of the ' story arc and most of the ' story arc.

Chapters

 * 134 (399). 
 * 135 (400). 
 * 136 (401). 
 * 137 (402). 
 * 138 (403). 
 * 139 (404). 
 * 140 (405). 
 * 141 (406). 
 * 142 (407).