After Ichigo Kurosaki and his friends arrive in Soul Society, Zaraki begins to hunt for the strongest fighter in their group before finding Ichigo. After a short skirmish, Zaraki stabs Ichigo thru the chest, seemingly killing him. Zaraki begins to walk away, when Ichigo stands up again, healed by the power of Zangetsu. During the fight, Ichigo becomes enough of a challenge that Zaraki removes his eyepatch, thus releasing the extra power it has been devouring. As they rush at each other, the exchange itself ends in a draw, with Ichigo falling first and Zaraki shortly after, both admitting defeat (though Zaraki's sword breaks in the end, after it is deflected by the sudden manifestation of Ichigo's hollow mask, which spared the latter from death). Zaraki later admits that he lost, but he needs to get stronger and pay Ichigo back. He finds himself happy he found someone strong to fight, before falling unconscious. He then decides to help Ichigo and frees his friends from imprisonment. Much later on, while searching for Ichigo with his friends in tow, they are headed off by 7th and 9th Division members. Zaraki battles their captains Sajin Komamura and Kaname Tōsen respectively, defeating Tōsen and fighting off Komamura before Komamura runs away to find Shigekuni Yamamoto Genryūsai. He does not see Ichigo and his friends off when they leave the Soul Society. He tells Yachiru that he and Ichigo will certainly meet again because they are the only ones who are what they seem to be. Zaraki also helps fight off the Bount invasion and successfully defeats Maki Ichinose, a former member of his squad who left after Zaraki killed his captain.