SO Volume 15

Heavy Weather (ヘビー・ウェザー) is the fifteenth volume of Stone Ocean and the seventy-eighth volume of the JoJo's Bizarre Adventure manga. It covers most of the  story arc.

Chapters

 * 127 (721). 
 * 128 (722). 
 * 129 (723). 
 * 130 (724). 
 * 131 (725). 
 * 132 (726). 
 * 133 (727). 
 * 134 (728). 
 * 135 (729).