"Reunited, Team Asuma!" (再会、アスマ班!, Saikai, Asuma-han!) is chapter 531 of the original Naruto manga.
Summary
Ino, Shikamaru, and Chōji prepare to fight Asuma. Mifune and other samurai arrive to assist the Surprise Attack Division and battle Hanzō, Chiyo, and Kimimaro. Mifune disables Hanzō's ninjutsu by attacking him between his formation of hand seals. While fighting each other, Mifune remembers the first time he fought with Hanzō. He then surprises Hanzō with his ability to dodge several of his attacks, and was still able to cause damage to him.