Chapter 879

Chapter 879 is titled "One of Big Mom's Three Sweet Commanders, Katakuri".

Cover Page
The Stories of the Self-Proclaimed Straw Hat Grand Fleet Vol. 13: Sai Arc - "The cancellation of the Engagement and Paying the Expected Price".

Sai breaks off his engagement to his former fiancée and receives a beating from her as a result.

Chapter Notes

 * Perospero helps Big Mom cross the sea as they pursue the Thousand Sunny.
 * It is shown that Perospero's candy can remain intact in sea water.
 * Prometheus claim he needs to eat fire to regain his strength.
 * Pound is shown to have left Whole Cake Island.
 * Sanji, Pudding, and Chiffon are approaching Cacao Island.
 * It is revealed that Lola was Totto Land's Minister of Chocolate before her departure.
 * Pudding is the next in line for the position, but she rejected it due to her belief that Lola would return home.
 * The battle between Luffy and Katakuri intensifies.
 * Katakuri is shown to be able to mimic and enhance some of Luffy's techniques using his own Devil Fruit.
 * Katakuri is also claimed by the Big Mom Pirates, to be the "Strongest Sweet Commander".