Arc 2The Arrancar Invasion
Yoriichi helped rescue Rukia, became a captain stationed in Karakura Town, and prepared for Aizen’s war while Ichigo trained and Orihime was abducted. The arc ended with Ichigo’s group heading to Hueco Mundo as Yoriichi and the Gotei 13 faced Aizen in Karakura Town.
- Yoriichi refused to use Hekyō’s fully materialized power during his training, then joined Ichigo’s rescue of Rukia and helped destroy the Sōkyoku.
- Yoriichi held off Yamamoto until Isane revealed Aizen’s plot, but Aizen escaped to Hueco Mundo with Gin Ichimaru and Kaname Tōsen.
- Yamamoto appointed Yoriichi Third Division Captain and stationed him in Karakura Town, where Yoriichi helped Ichigo and his friends return from Soul Society.
- Yoriichi recognized Shinji Hirako as a Visored, then trained in Kidō with Tessai Tsukabishi while Ichigo agreed to learn to control his inner Hollow.
- Yoriichi fought off the Arrancars who attacked Karakura Town and helped Soul Society prepare for their next invasion.
- During the invasion, Yoriichi defeated Nnoitra and aided Hitsugaya, but Orihime left with Ulquiorra after Aizen threatened her friends.
- Yamamoto kept Yoriichi in Karakura Town to resist Kyōka Suigetsu while Ichigo, Uryū, and Chad went to Hueco Mundo to rescue Orihime.
- After Soul Society replaced Karakura Town with a replica, Aizen arrived with Gin, Tōsen, and the Arrancar forces, and Yamamoto confronted them as Yoriichi vowed to protect the town.