Arc 5The Teacher and the Hollow Invasion
Ye Yang trained Renji, Kira, and Hinamori, reunited Rukia with Hisana, and continued his relationship with Soi Fon while confronting Kenpachi in a fierce duel. Years later, his students faced a deadly Hollow invasion in the World of the Living, and Ye Yang arrived to rescue them and attack the swarm.
- Ye Yang became an instructor at Shin'ō, where he put Class One through punishing physical and combat training and gave Renji, Kira, and Hinamori individual plans.
- Ye Yang discovered that Rukia was Hisana's younger sister and brought them together, leading Byakuya to adopt Rukia into the Kuchiki Clan despite the elders' opposition.
- Renji asked Ye Yang to train him so he could protect Rukia, and Ye Yang accepted him as a student after Renji explained his purpose for wielding a sword.
- Ye Yang sought out Tōshirō Hitsugaya in Junrinan and gave him methods to control his immense Spiritual Pressure, while agreeing to help if it harmed his grandmother.
- Ye Yang answered the Women's Association's questions about his past, then fought Kenpachi in Bankai and urged him to treat the mysterious power of his Zanpakuto as a partner.
- Over three years, Ye Yang's students grew stronger, and he led them on a World of the Living exercise under Shūhei Hisagi's supervision.
- Aizen and Gin orchestrated an invasion by giant Hollows, killing two students and forcing Renji, Kira, Hinamori, and the others to fight while Shūhei called for reinforcements.
- Ye Yang used the Shihoin Clan's private Senkaimon to reach the World of the Living, rescued the remaining fighters with a Dimensional Slash, and killed dozens of giant Hollows.