Jun

Biodata

Power Progression

Background

Jun arrived in Soul Society with the original Jun Shimizu’s memories and knowledge from a previous life in which he had watched Bleach and worked as a screenwriter. Fearing the dangers he knew might lie ahead, he resolved to become a Soul Reaper and eventually reach captain-level strength 1 5.

His parents were Eighth Division Soul Reapers who died fighting a Gillian-class Menos Grande while protecting Rukongai. At their funeral, Jun asked Captain Shunsui Kyōraku to send him to Shin'ō Academy. Kyōraku agreed and arranged care for Jun’s younger sister, Kiyoshi, also called Jing, who was adopted by the Ise Clan 1 2 4.

Appearance

At approximately 140 years old, Jun stood around 1.6 meters tall and looked like a fourteen-year-old boy 14.

• As an academy newcomer, his childlike height made him conspicuous among the other students 6.
• His physical growth reflected the slow aging of souls in Soul Society 1 14.
• Later, he stood approximately 183 centimeters tall 88.

Personality

Jun is cautious and strategic, initially treating survival as his first priority. He deliberately concealed his strength during his academy years and cultivated a harmless public image, even while seeking influence and criticizing Soul Society’s rigid class system 1 11 12 34.

He is also curious and enjoys studying for its own sake. He read the Journal Hall’s old records as a way to unwind and used discussions with friends to question accepted approaches to Kidō 7 9.

Jun’s concern for people close to him shapes his decisions. Yuzuki’s death affected him like the loss of a mother, while the casualties of the Shiba Clan crisis pushed him to intervene despite the danger. He later sought to improve Soul Reaper training and lower expedition death rates 14 24 28 30.

Isuzu’s death devastated Jun and strengthened his determination to pursue their shared ambitions. After restoring her, he acknowledged how deeply attached he was to her 99 121 208 210.

Jun came to advocate a safer and freer Soul Society in which ordinary souls could resist abuse. Rather than relying solely on his own strength, he sought allies across different groups and used their combined influence to pursue change 210 216 242.

Abilities & Skills

Kidō

Jun is exceptionally skilled at manipulating Reishi. He can cast advanced Kidō without incantations and developed his own Shimizu-style Kidō 9 11 48.

• Offense: Used Hadō #83 at graduation, #90 against Sasebo, and eventually learned #99 16 27 36.
• Binding and sealing: Defeated Asai with a series of bindings, including Soul Seal. He also sealed captured Hollows’ senses and spiritual power 17 19.
• Detection and communication: Used Bakudō #58 to detect Hollows, Kakushitsuijaku to survey battles, and Tenteikūra to speak with Starrk and Lilynette 19 27 42.
• Concealment and space: Used Kyokkō to hide his presence and Space Kidō to close the expedition’s Senkaimon from Hueco Mundo 31 42.
• Training insight: Perceived subtle “nodes” in spiritual-power movement and helped Isuzu coordinate her incantation with Reishi flow when learning Tōzanshō 13.
• Later techniques: Developed a two-way Telephone Technique, used Space-Breaking World for travel, and employed Radar Technique to locate Isuzu in the Forest of Menos 51 69 98.
• Healing: Used Life Synchronization to keep the mortally wounded Isuzu alive temporarily and later used Kaidō to recover from injuries sustained against Yamamoto 98 174.

Hakuda, Zanjutsu, and Shunpo

Jun trained in unarmed combat, swordsmanship, and Flash Step alongside Kidō. Tachikawa Zan drilled him in sword fundamentals for three months 6.

• At graduation, Jun defeated his first examiner with Shunpo and impressed Sixth Seat Mizunami with a crushing fist 16.
• Yoruichi approved of his Hakuda and said he could potentially found his own school 17.
• Tachikawa acknowledged that Jun’s Zanjutsu had reached menkyo level, qualifying him to leave his tutelage 17.

Shikai

Jun’s publicly presented Shikai is Clear Rain, released with the words: “Wash away evil, cleanse all sin! Fall, Clear Rain!” He concealed his true Shikai because he considered his true self incompatible with Soul Society 38.

• Jun theorized that Shikai and Bankai were forms of Reishi manipulation related to Kidō 38.
• His extensive Kidō knowledge, aided by Hanazawa’s insights, helped him conceal his Zanpakuto’s true nature 38.
• Clear Rain is a weather-type release that covers a wide area with lethal rain. Jun can control the drops to attack opponents 68.
• Non-Aggression, an ability of his true Shikai, prevents those under its influence from harming others or themselves. Physical attacks lose their force and energy attacks become harmless 75.

Bankai and Created Weapons

Jun developed and used multiple specialized Zanpakuto abilities. He also taught others a method of communicating with their swords by sensing and synchronizing their Spiritual Power with them 86 100 103 109.

• Clear Rain Eradicates Sin: Creates a vast rainstorm of Jun’s Spiritual Power. Against Yamamoto, its rain depleted the Captain-Commander’s Spiritual Power until his flames dispersed it 100 173 174.
• Tsunade: A created Shikai that forms armor and gauntlets for enhanced strength. Its full release can increase attack power by up to twenty-seven times, but leaves Jun’s arms severely weakened and halves his Reiatsu and Spiritual Flow temporarily 86.
• Destruction King: Produces blood-red flames that make Spiritual Power explode. Jun used its Bankai against Yamamoto 173.
• Sanctification and Thunder Charge: Divine Speed: Sanctification strengthens multiple attributes and provides defensive and absorptive abilities; Thunder Charge greatly increases speed 174.
• Vimalakirti Bead and Seven Laws: The bead delays an opponent within its range, while Seven Laws imposes rules that Jun must also obey 206.
• Other weapons: His arsenal includes Endless, which can kill with a strike to a wound or weak point, and weapons designed for guaranteed hits, attacks from shadows, and suppression of fire-type Zanpakuto 109 217.

Research and Teaching

Jun researched the nature of Soul Reaper aging and concluded that death occurred when Soul Return could no longer keep pace with Spiritual Power depletion. He found that completed Hollowfication increased Soul Return and created State of Mind to help souls resist their inner demons during the process 107.

He also experimented with Arrancar transformation. Using the Hōgyoku, he learned to synchronize his Spiritual Power with captured Hollows to transform them successfully, then restored Isuzu through Empty Aspect and an Arrancar transformation 121.

Spiritual-Power Measurements

Jun proposed separating the broad concept of Reiatsu into five attributes. In a test using approximately 70–80% of his strength, he recorded the following values 22 25:

Kirio Hikifune assessed all but his Spiritual Pool as captain-level at the time of the test 25.

After approximately two centuries of development, Jun’s Reiatsu and Spiritual Flow both exceeded 600 86.

Equipment & Items

• Zanpakuto — Received as an Asauchi on his fourth day in the Tenth Division; he later presented its Shikai as Clear Rain 21 38.
• Hanazawa’s Kidō notes — Given to Jun during the Shiba Clan crisis and later contributed to his understanding of Kidō and Zanpakuto 34 38.
• Locator Tag — Used during a Hollow-capture assignment to alert him to a group of sixteen Hollows 23.
• Created Zanpakuto and spiritual-power storage devices — Jun developed a collection of specialized swords, including some with Bankai, and equipment capable of storing Spiritual Power 86 96 109 142.
• Hōgyoku — Obtained from Kisuke Urahara and used to transform Hollows into Arrancar and restore Isuzu 121.
• Five Wooden Gourds Crest — Used to locate Hell before Jun and Uryū forced its gates open 236.

Relationships

• Kiyoshi Shimizu / Jing Ise — Jun’s younger sister. He arranged for her care through Kyōraku, later trained her at the academy, and celebrated her graduation alongside his own 1 2 15 17.
• Isuzu Takasugi — His former Kidō tutor and wife. They became a couple after Yuzuki’s death, trained together, and later searched for the Bount. After she was mortally wounded in an assassination plot, Jun eventually restored her as an Arrancar 6 14 36 48 98 99 121.
• Sōsuke Aizen — A friend, training partner, and confidant whom Jun met in the Journal Hall. Jun knew of Aizen from his previous life but kept his own origins secret. Their later ambitions placed them on opposing sides, though they also fought Yamamoto together 7 11 12 216 217.
• Shunsui Kyōraku — Jun’s benefactor and a trusted adviser. He secured Jun’s academy place and supported him at graduation and during the Shiba Clan crisis 1 16 29.
• Yuzuki Samidare — An academy senior who cared for Jun like an older sister and, in his view, half a mother. Her death on a mission deeply affected him 4 14.
• Nana Onibe — A former dormitory companion and fellow Tenth Division Soul Reaper who patrolled with Jun. After her death, Jun promised at her grave to care for her son, Ichinose Maki 6 12 19 107.
• Asai Shinten — The former Ninth Seat whom Jun defeated and made his adjutant. She later accompanied him on the Hueco Mundo expedition 17 23 39.
• Instructor Hanazawa — Jun’s early teacher and the mastermind behind the Shiba Clan crisis. He entrusted Jun with his Kidō notes before sending him and Aizen away 4 34.
• Coyote Starrk and Lilynette Gingerbuck — Beings Jun befriended in Hueco Mundo. He taught them speech and arithmetic and helped Starrk control his Reiatsu 42 43.
• Kōga Kuchiki and Kuchiki Aozumi — Kōga became Jun’s disciple. Jun negotiated for Aozumi to attend the academy and meet Kōga before their planned marriage; both later joined Jun’s camp 59 216.
• Sōjun Kuchiki — An ally who supported Aozumi’s academy enrollment and later worked to advance Jun’s reformist aims 59 242.
• Ichigo Kurosaki — Jun told Ichigo that he was his uncle, advised him about his unstable Hollow powers, and later tested and restored his Soul Reaper powers 189 206 222.
• Nobunaga Oda — Jun helped open Hell’s gates, allowing Nobunaga to escape. They later confronted Yhwach together, and Nobunaga killed him 236 252.

Story Role & Major Arcs

Shin'ō Academy

Jun entered the academy outside the usual enrollment season, lived in the women’s fourth dormitory, and became famous for his Reishi records. He organized the neglected Journal Hall, where he met Aizen, and trained for decades while concealing much of his Kidō ability 4 6 7 12.

After Yuzuki’s death, Jun and Isuzu became a couple. At graduation, he displayed exceptional combat and Kidō skills and requested assignment to the Tenth Division 14 16.

Tenth Division and the Shiba Clan crisis

After earning Ninth Seat, Jun led Soul Reapers against Hollows and captured specimens for the Twelfth Division. He also organized optional lessons and proposed more precise categories for spiritual-power measurement 17 19 22.

During the crisis surrounding the Shiba and Shihōin clans, Jun survived an ambush, killed Sasebo, and sought to mediate between the clans. He and Aizen fought concealed attackers before confronting Hanazawa. After the families’ reconciliation, Jun was promoted to Seventh Seat 27 30 31 34 35.

Hueco Mundo expedition

More than a century after his wedding, Jun joined an expedition to Hueco Mundo. When a powerful threat appeared, he stayed behind, sent the remaining Soul Reapers through the Senkaimon, and closed it from outside. Soul Society held his funeral, but he survived and befriended Starrk and Lilynette 36 39 42 43.

To return, Jun persuaded Starrk to injure him severely and throw him through the Dangai. Rescued by Tenth Division members, he spent seventeen days in a coma and recovered with Retsu Unohana’s treatment 45 46.

Search for the Bount

Jun and Isuzu investigated an old Research Institute accident using hidden journal entries, then searched Japan for the Bount. Over roughly fifteen months, they gathered 372 Bount and established a town. Jun planned to teach them literacy and control of their powers while addressing their food supply and safety 48 50.

Jun explained the Bount’s origins and the danger they faced from Soul Society. Most chose to settle peacefully, although Kariya Jin wanted revenge. Jun began constructing a concealment and disorientation barrier around the town, while Starrk’s arrival with uncontrolled Reiatsu temporarily froze its residents 51.

Nobility, war, and Isuzu’s death

Jun sought to protect his disciple Kōga’s future by asking Kuchiki Ginrei not to give him special treatment and by arranging for Aozumi to attend Shin'ō Academy before marrying him. Later, the Shimizu Family became a lower-ranking noble house. Isuzu was barred from witnessing the elevation because she came from Rukongai, leaving Jun bitter and determined to change Soul Society’s rules 59 72.

During fighting against Hollows, Jun used Clear Rain to help endangered Soul Reapers. He later killed an Adjuchas attacking Edo Castle with the created Shikai Tsunade and learned of a vast Hollow army in Hueco Mundo 68 86.

Jun discovered that Isuzu had been sent into the Forest of Menos under an altered expedition order. He found her mortally wounded, kept her alive temporarily, and learned from Takagi that Higashiyama had ordered the attack. Isuzu died, and Jun resolved to continue pursuing their shared ambitions 98 99.

Captaincy and Isuzu’s return

Jun eventually announced Clear Rain’s Bankai and returned to Soul Society as a captain. He continued teaching and researching Soul Reaper powers, Hollowfication, and the causes of aging 100 103 107.

Jun compelled Kisuke Urahara to surrender the Hōgyoku and tested it on captured Hollows. After learning how to achieve successful Arrancar transformations, he transferred Isuzu’s humanity into a Hollow body and completed her transformation, restoring her to life with him 121.

Rukia’s pursuit and the conflict with Yamamoto

When Soul Society discovered Ichigo’s powers and ordered Rukia’s pursuit, Jun asked Byakuya to spare Ichigo if possible. He later told Ichigo’s group where Rukia was imprisoned while staying out of their rescue attempt 137 144.

Investigating destruction caused by a Quincy, Jun recovered a tiny Kōtotsu and concluded that a Quincy had created Soul Society. He shared his theory with Isuzu 156.

Jun later fought Captain-Commander Yamamoto using Clear Rain, transformed allies, and multiple Bankai. Badly injured after his power went out of control, Jun was protected by Oka and the Arrancar; he healed his arm and departed through a rift with Aizen and his allies 173 174.

Coalition and Ichigo’s training

After arranging the evacuation of Karakura Town, Jun brought Undead, Fullbringers, Visored, and researchers to Hueco Mundo. At the Endless Sea, his group witnessed the birth of a new Arrancar whom Oka subdued and began teaching 179.

Jun entered Ichigo’s Inner World to discuss his unstable fusion with White and urged him to see more of the world. In a later training fight, Jun overwhelmed Ichigo with specialized Bankai and equipment. When Ichigo’s Hollow took control, Jun pierced him and invited Rukia and the others to enter his Inner World 189 206.

At a divided battlefield, Jun announced his intention to end the fighting, defeat Aizen, and remake Soul Society into a safer, freer society. Several Soul Reapers and former members of Aizen’s side joined his camp, and Yamamoto released his full Reiatsu as the confrontation escalated 216.

After Ichigo spent a month without Soul Reaper powers, Jun restored them and revealed that he had invented a claim about Ichigo’s damaged soul to test his choice. Jun gave Ichigo responsibility for the Seaside Villa and its Training Ground, warned him away from Soul Society’s political upheaval, and made him promise not to use the Final Getsuga Tenshō again 222.

Hell and Yhwach

Jun learned from Arturo that the Soul King had died after creating and separating the worlds. Using Nobunaga Oda’s Five Wooden Gourds Crest, Jun located Hell; he and Uryū forced its gates open, allowing Nobunaga to escape 236.

Meanwhile, Sōjun and other supporters advanced Jun’s reformist aims in Soul Society, seeking to oppose abuse and share knowledge more broadly 242.

Jun later questioned Haschwalth about Yhwach and the Wandenreich, deducing that Yhwach had spent a thousand years digesting something he had obtained. When Yhwach appeared, Jun separated him from Haschwalth, allowing Nobunaga to kill him 252.