One Piece, Vol. 72 continues where the previous tankōbon left off and contains the next ten chapters (712–721) of the on-going manga series.
This tankōbon continues the Dressrosa Arc. Sanji fall victim to Viola, one of the officers within the Donquixote Pirates, along with her subordinates. Meanwhile in Green Bit, Doflamingo and Fujitora arrived and confront Trafalgar Law into a standoff.
Fujitora attacks by bringing a meteor down to the ground. As the Straw Hats prepare to destroy the SMILE Factory, Usopp lies to the dwarves about being Montblanc Noland's descendant, and they respond by making him their leader in their battle against the Donquixote Pirates, dubbing him Usoland.
Meanwhile, back in Dressrosa, the Battle Royale for Block C has began, with Luffy excited to win the prize, the Flame-Flame Fruit. Luffy tames the Fighting Bull, which Hajrudin crushes and Luffy gets revenge by knocking Hajrudin out. The battle continues as more fighters are eliminated, and Luffy loses his helmet. Chinjao rushes toward Luffy, eager to end him, and the two clashes with Haki, knocking everyone out of the ring except them.
Luffy meets with the other gladiators after his victory and goes to eat with Rebecca. Rebecca shows him several prisoner gladiators who are forced to fight 1000 matches or until they die. Rebecca reveals that Thunder Soldier is her guardian and remembers how he took care of her and taught her to fight after her mother was killed. Rebecca then heads toward the ring as Block D is about to begin.
This tankōbon is written and illustrated by Eiichirō Oda. For the most part it is written and constructed rather well. It continues the Dressrosa Arc, which is divided into two stories – the Battle Royale that Monkey D. Luffy enters and eventually wins his block. The second story deals with the Straw Hats and their continuing mission to destroy the SMILE Factory, which just happens to be under the coliseum that Luffy is fighting in.
All in all, One Piece, Vol. 72 is a wonderful continuation to a series that seems really intriguing and I can't wait to read more.