Arc 1Sōgo’s Exile to Hueco Mundo
Sōgo Shihoin trained Kisuke Urahara and Yoruichi Shihōin at the Soul King Palace, then left for Hueco Mundo to master his dangerous Spiritual Pressure. There he befriended Lilynette Starrk and met Szayelaporro, who offered to help them control their power.
- A being reincarnated Sōgo Shihoin as Yoruichi Shihōin’s younger brother, and Sōgo soon revealed his immense sealed Spiritual Pressure to Kisuke Urahara.
- Yoruichi, Kisuke, Kūkaku Shiba, and Sōgo endured the Front Approach, and Ichibē Hyōsube assigned them to train with Tenjirō Kirinji.
- Sōgo trained Kisuke through combat, forcing him to awaken Bankai and toughen his spiritual body, while Yoruichi improved her Shunpo with Kirinji.
- Ichibē offered Sōgo a place in Squad Zero, but Sōgo refused and chose to leave Soul Society until he could control his Spiritual Pressure.
- Sōgo said farewell to Yoruichi and Kisuke, entered a Senkaimon to Hueco Mundo, and found that Ōetsu Nimaiya’s bundle contained a Reishi-absorbing food-making Zanpakuto.
- Sōgo befriended the isolated Lilynette Starrk, named himself her teacher, and began training her by bowling Menos Grande.
- Sōgo and Lilynette met Szayelaporro over hot pot, and Szayelaporro became fascinated by Sōgo’s power and Lilynette’s Arrancar nature.
- Szayelaporro offered to develop ways for Sōgo and Lilynette to control their Spiritual Pressure in exchange for studying Sōgo, and Sōgo promised him a visit to Soul Society if he succeeded.