Arc 4The Second Division’s New Lieutenant
Dōsan Hanyū became the Second Division’s lieutenant and pursued crimes tied to the Tsunayashiro Clan while taking on new duties and investigating Momo Hinamori’s disappearance. As he helped recruit early graduates, Soul Society faced growing threats, and Dōsan ended the arc confronting the strangely familiar Inorei Hikaru.
- Dōsan fought Mayuri Kurotsuchi over Hikaru, then refused Tsunayashiro’s offer of a seat and watched Tsunayashiro claim authority over Hikaru.
- After an escape from Muken and the deaths of students and Modified Souls, Soi Fon nominated Dōsan as her lieutenant, and Yamamoto appointed him vice-captain of the Second Division.
- Dōsan’s banquet with Second Division members turned into a fight, and Soi Fon subdued him before appointing him lieutenant, captain of the Correction Corps, and vice commander of the Punishment Force.
- Dōsan investigated Momo Hinamori’s disappearance with Tōshirō, uncovered Gin’s underground laboratory, and arrested Gin and its researchers after finding Hinamori bound there.
- Dōsan killed a researcher who resisted arrest, while Gin revealed the experiments were tied to Tsunayashiro, and Tsunayashiro later chose Kenpachi Zaraki as a target for his plans.
- After Tenzō Tenjō wounded Aizen and several Soul Reapers, Yamamoto refused Dōsan’s request to join the mission and sent Kaien to kill Tenzō with the ill-omened sword.
- Dōsan helped assess academy students for early recruitment, selecting Mitsu, Kōiku, and Kōji among the recruits, while Honrō revealed he was investigating links between Gin, the Tsunayashiro Clan, and Aizen.
- Dōsan answered an emergency call to support the 11th Division, tracked a foe with mixed Soul Reaper and Hollow Spiritual Pressure, and found Inorei Hikaru as Gin watched.