Recaps

After his parents died fighting a Menos Grande, Jun entered Shin'ō Academy and formed a friendship with Sōsuke Aizen. Jun graduated into the Tenth Division and began sharing training methods, while he and Aizen assessed their strength against Shunsui Kyōraku's.

• Shunsui Kyōraku arranged Jun's admission to Shin'ō Academy after Jun's parents died fighting a Menos Grande.
• Jun set academy records in Reishi training and began studying swordsmanship and Kidō.
• Jun met Sōsuke Aizen in the Journal Hall, and Aizen became his training partner and confidant.
• Jun learned that Yuzuki Samidare had died on a mission, and he and Isuzu Takasugi became a couple.
• Jun and Jing graduated, and Jun earned a seat in the Tenth Division while planning to marry Isuzu.
• Jun captured Hollows for the Twelfth Division and organized lessons to help Tenth Division members improve.
• Jun shared his Chant Harmony Score for Kidō training and discussed reducing expedition deaths with Aizen.
• Jun and Aizen compared their Spiritual Power Tester results and estimated how far they were from Shunsui Kyōraku's strength.

Jun survived a deadly expedition in Hueco Mundo, returned to Soul Society, and began investigating the Bount with Isuzu. After gathering hundreds of Bount and founding a hidden town, Jun faced the problem of how to sustain them and protect them from Soul Reapers and Hollows.

• Jun helped expose and end the conflict between the Shiba and Shihoin Clans, but the fighting cost hundreds of lives and led to the Shiba Clan losing its noble status.
• Jun mentored Kōga Tatara at Shin'ō Academy, accepted an expedition to Hueco Mundo, and led a team into the Forest of Menos under Kensei Muguruma.
• A Rhinoceros Beetle Hollow drove the expedition toward the Senkaimon, and Jun stayed behind to help the others escape before encountering Coyote Starrk and Lilynette Gingerbuck.
• Jun lived with Starrk and Lilynette in Hueco Mundo, studied Hollows, and arranged for Starrk to injure and send him back through a spatial rift.
• Yamada Taiyū and Akiyama Eiji rescued Jun, and he recovered in Soul Society while Isuzu and Aizen learned how he had survived.
• Jun and Isuzu traveled to the World of the Living, found the Bount Koinu, and learned about the suffering he had endured.
• Jun renamed Koinu Minamijima Inosuke and joined Isuzu in gathering 372 Bount, including Kariya Jin, to establish a town on Shikoku.
• Jun promised to teach the Bount and realized they needed food and protection, then discovered they could gain Spiritual Power by eating Hollows and began devising a new plan.

Jun sheltered the Bount, later known as the Undead, while guiding Kōga and Aozumi through their arranged marriage and confronting Soul Society’s violence and political factions. The arc left Jun newly made a noble and considering Aozumi as the heir to his legacy, while Aizen continued his hidden research into the Hōgyoku.

• Jun discovered the Bount’s history, helped them reject soul hunting and become the Undead, then hid their settlement and taught them to survive.
• Jun met Starrk and Grimmjow in Hueco Mundo, helped Starrk prepare Grimmjow to become an Arrancar, and arranged for Starrk to protect the Undead.
• Jun and Isuzu encountered the consequences of Soul Society’s experiments and political schemes as decades passed, while Zaraki met Unohana and Kōga discovered Muramasa, his manifested Zanpakuto.
• Jun guided Kōga and Aozumi through their arranged marriage, helping Aozumi question Kuchiki restrictions as the two grew close and developed their skills.
• Jun and Starrk protected Soul Reaper expeditions, but rebellions and factional violence took many lives, and Jun concluded that Central 46 used conflict to preserve its power.
• Jun and Isuzu fought in Soul Society’s campaign against Baraggan’s Hollow army, which ended in a retreat after severe losses.
• Jun warned the Undead that spiritual pregnancy could consume their power, while he pushed for military reforms and became involved in the Main House faction’s bid to make him a noble.
• Jun and Aizen killed a corrupt noble, and Jun realized Aizen’s investigations into missing people were tied to the Hōgyoku, and later, Kōga and Aozumi married and discussed the Kuchiki Clan’s rules.
• Jun taught Kōga and Aozumi about Zanpakuto, revealed his Shikai, Non-Aggression, and told Aozumi she could inherit his legacy.

Jun intervened in Kakyō’s story, helped Soul Society survive escalating Hollow attacks, and forged ties with Arrancar and outcasts. After Isuzu was mortally wounded and became a Hollow, Jun accepted command of the Tenth Division while leaving her fate in Oka’s hands.

• Jun helped Aozumi awaken a dual-weapon Shikai inspired by the story of Lady Yae Sakura, then discovered Kaname Tōsen hiding near Tachikawa Jin’s wedding procession.
• Jun revealed the Tachikawa Family’s human-sacrifice method to Kakyō and urged her to pursue justice through teaching, but Central 46 later had her killed, prompting hundreds of thousands of Rukongai residents to besiege Seireitei.
• Jun and his allies faced a massive Hollow invasion, while he built a farming settlement in the World of the Living and brought Arrancar and Undead there to live alongside Soul Reapers.
• Genryūsai Yamamoto led Soul Society to victory against the Hollow army, though the expedition suffered heavy losses, and his attempt to defeat Baraggan later failed against Respira.
• Jun stopped Kuruyashiki Kenpachi and Sōya Azashiro’s duel, brought them together with Arrancar, and persuaded Azashiro to return to Soul Society as Kenpachi after Kuruyashiki died.
• Jun investigated the use of Hollow power to advance Soul Reapers, but an altered expedition order sent Isuzu into the Forest of Menos, where he found her dying and learned Higashiyama had arranged the attack.
• Isuzu asked Jun to keep pursuing his ambitions, merged with the blue-ribbon sword, and became a Hollow, and Jun left her with Oka and refused to return to Soul Society until ordered to lead the Tenth Division.
• Jun appointed Shūsuke Amagai as expedition leader, demonstrated Clear Rain Eradicates Sin to the captains, and took command of the Tenth Division.