Tetsuzaemon Iba/Anime Continuity

is the 7th Division's lieutenant under Captain Sajin Komamura.

Bount Arc
Note: Events occurring in this arc are only in the anime and do not constitute canon material.

He is sent along with Marechiyo Ōmaeda to Rukongai to counter the Bount invasion, but is attacked by Jin Kariya and Gō Koga and quickly defeated.

Zanpakutō Unknown Tales arc
Note: Events occurring in this arc are only in the anime and do not constitute canon material.

When his captain is defeated by his own Zanpakutō spirit, Iba and Hisagi carry and send him for medical treatment. He later talks with Isane Kotetsu during the Zanpakutō's assault on the 6th Division barracks. They are then confronted by the manifested spirit of Ashisogi Jizō. Soon the captain-level Zanpakutō activates its Bankai, ravaging the field. Despite escaping, Iba is infected by Ashisogi Jizō's poison and faints. Iba is found by the 4th Division and treated.

Beast Swords arc
Note: Events occurring in this arc are only in the anime and do not constitute canon material.

With the threat of the Tōjū emerging after Muramasa's death, Iba is sent along with Hisagi, Kira, Ikkaku, and Hisagi's Zanpakutō Kazeshini to defeat a gang of the creatures that terrorize the Rukongai. Iba comments that Hisagi possessing a Zanpakutō like Kazeshini "must be awful".

Gotei 13 Invading Army arc
Note: Events occurring in this arc are only in the anime and do not constitute canon material.

When Ichigo arrives in Soul Society, Iba assists in his arrest, along with other senior Shinigami. Later, Ikkaku appears with other members of the Gotei 13 in the Human World as they escape the Dangai and fend off Kagerōza Inaba. After fending off Inaba and forcing him to retreat, Iba joins other members of the Gotei 13 as they hold a meeting in Ichigo's room.

Tetsuzaemon participates in a meeting in Ichigo's room, where he listens to Nanao Ise reporting on the situation in Soul Society. Later, when the Reigai of Kenpachi Zaraki breaks out of Urahara's trap and arrives in the Human World, Tetsuzaemon and the other lieutenants arrive to help Ikkaku fight him. However, Ikkaku dismisses them, saying that they have their own opponents. When more Reigai arrive, Tetsuzaemon leaves to fight the new arrivals. Tetsuzaemon is joined by Rangiku as they faced the Reigai of Komamura. The Reigai quickly overwhelms them with his sheer power and they are forced back to join their allies. Seeing how bad the situation, it is suggested they rely on Nozomi's newly acquired Shikai and its ability to absorb and redirect spiritual energy. Tetsuzaemon initially refuses, saying he doesn't fully trust her, but after some convincing, he grudgingly agrees. They launch their attacks on Nozomi, who then directs the accumulated energy on the Reigai, defeated all except for the Reigai-Byakuya, who then counters with a blast of his own, knocking everyone except for Ichigo and Nozomi out. Yamamoto arrives and quickly defeats the last Reigai.

As the Reigai of Kyōraku and Ukitake arrive, an unconscious Tetsuzaemon, along with Izuru, Shūhei, and Rangiku are taken to Orihime to be healed. With the arrival of Captain Unohana, Tetsuzaemon and the others are taken to the Shinigami's temporary base where she treats them. However, she states that their condition is severe.

After recovering, Tetsuzaemon joins the other healed Shinigami and returns to Soul Society. There he finds his captain and joins him in facing their respective Reigai-counterparts. Despite this assistance, the Reigai still pressure the Shinigami. Byakuya Kuchiki then realizes the truth behind the Reigai's battle style: they value self-preservation the most and won't attack first in fear of being outnumbered. Later, the resurrected Ōko Yushima begins his endgame, using his Renzan: Hajō Kūri technique to begin destroying the Soul Society. Before the Shinigami can act, the Reigai step forward, saying that they will stop their fellow Mod-Soul's chaotic plan as their goal has always been to protect the Soul Society in their own way. Reigai then destroy the technique at the cost of their own lives.