On April 3, 2022, Masked Hanahana defeated Kaori Yoneyama and Yumi Ohka in a three-way match to become the inaugural champion.[1] On April 13, 2025, the 10th champion Mayumi Ozaki was stripped from the title after not being able to defend it in the scheduled match. Kakeru won the vacant championship after defeating Itsuki Aoki and Ram Kaicho.[3] On November 23, the title was vacated for the second time due to the reigning championship Sonoko Kato's retirement.[4]
As of August4, 2026, there have been 13 reigns between 10 champions and two vacancies. Masked Hanahana was the inaugural champion. Kakeru has the longest reign at 217 days, while Sonoko Kato has the shortest reign at 7 days. Akino, Hanahana and Kaori Yoneyama have the most reigns at two. Jaguar Yokota is the oldest champion at 63 years old, while Momoka Hanazono is the youngest at 22 years old.
<ref>{{cite web|url=https://www.wrestling-news.net/oz-academy-battle-big-bonus-in-korakuen-results/184406/|title=OZ Academy Results: Battle Big Bonus In Korakuen – Tokyo, Japan (4/3)|work=wrestling-news.net|first=Wayne|last=Daly|date=April 3, 2022|access-date=September 10, 2024|archive-url=https://web.archive.org/web/20241209143844/https://www.wrestling-news.net/oz-academy-battle-big-bonus-in-korakuen-results/184406/|archive-date=December 9, 2024|url-status=dead}}</ref>"}},"i":1}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"2"},"champion":{"wt":"{{sortname||Akino|Mika Akino}}"},"reign":{"wt":"1"},"date":{"wt":"{{dts|July 31, 2022}}"},"days":{"wt":"{{age in days nts|July 31, 2022|September 18, 2022}}"},"location":{"wt":"[[Nagoya, Japan]]"},"event":{"wt":"''Battle Big Bonus in Nagoya''"},"defenses":{"wt":"0"},"notes":{"wt":"This was a [[three-way match]] also involving [[Momoka Hanazono]]."},"ref":{"wt":"<ref>{{cite web|url=https://oz-academy.com/archives/29444|script-title=ja:【22.7.31名古屋】全試合結果〜正危軍が獣友を翻弄!AKINOは二冠王者に!|work=oz-academy.com|author=''Oz Academy''|language=Japanese|date=July 31, 2022|access-date=November 17, 2022}}</ref>"}},"i":2}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"3"},"champion":{"wt":"{{sortname|Kaori|Yoneyama}}"},"reign":{"wt":"1"},"date":{"wt":"{{dts|September 18, 2022}}"},"days":{"wt":"{{age in days nts|September 18, 2022|October 16, 2022}}"},"location":{"wt":"[[Osaka, Japan]]"},"event":{"wt":"''Bad Moon Rising at Osaka''"},"defenses":{"wt":"0"},"notes":{"wt":"This was a [[three-way match]] also involving [[Tsubasa Kuragaki]]."},"ref":{"wt":"<ref>{{cite web|url=https://superluchas.com/oz-academy-bad-moon-rising-osaka/|title=OZ Academy: \"Bad Moon Rising @ Osaka\"|work=[[Superluchas.com]]|author=Dark Angelita|language=es|date=September 28, 2022|access-date=September 10, 2024|archive-url=https://web.archive.org/web/20221117152825/https://superluchas.com/oz-academy-bad-moon-rising-osaka/|archive-date=November 17, 2022|url-status=live}}</ref>"}},"i":3}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"4"},"champion":{"wt":"{{sortname|Momoka|Hanazono}}"},"reign":{"wt":"1"},"date":{"wt":"{{dts|October 16, 2022}}"},"days":{"wt":"{{age in days nts|October 16, 2022|April 23, 2023}}"},"location":{"wt":"[[Naha]], [[Japan]]"},"event":{"wt":"''Battle Big Bonus in Okinawa''"},"defenses":{"wt":"2"},"notes":{"wt":"This was a [[three-way match]] also involving [[Cherry (Japanese wrestler)|Masked Hanahana]]."},"ref":{"wt":"<ref>{{cite web|url=https://superluchas.com/oz-academy-battle-big-bonus-in-okinawa/|title=OZ Academy: «Battle Big Bonus in Okinawa»|work=[[Superluchas.com]]|author=Dark Angelita|language=es|date=October 26, 2022|access-date=September 10, 2024|archive-url=https://web.archive.org/web/20221026223013/https://superluchas.com/oz-academy-battle-big-bonus-in-okinawa/|archive-date=October 26, 2022|url-status=live}}</ref>"}},"i":4}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"5"},"champion":{"wt":"{{sortname|Kaori|Yoneyama}}"},"reign":{"wt":"2"},"date":{"wt":"{{dts|April 23, 2023}}"},"days":{"wt":"{{age in days nts|April 23, 2023|July 30, 2023}}"},"location":{"wt":"[[Tokyo]], [[Japan]]"},"event":{"wt":"''OZ Academy Battle Big Bonus in Korakuen''"},"defenses":{"wt":"0"},"notes":{"wt":"This was a [[three-way match]] also involving [[Kohaku (wrestler)|Kohaku]]."},"ref":{"wt":"<ref>{{cite web|url=https://www.cagematch.net/?id=1&nr=365810|title=OZ Academy Battle Big Bonus In Korakuen 2023|work=cagematch.net|first=Philip|last=Kreikenbohm|date=April 23, 2023|access-date=April 23, 2023}}</ref>"}},"i":5}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"6"},"champion":{"wt":"{{sortname|Itsuki|Aoki}}"},"reign":{"wt":"1"},"date":{"wt":"{{dts|July 30, 2023}}"},"days":{"wt":"{{age in days nts|July 30, 2023|December 30, 2023}}"},"location":{"wt":"[[Nagoya]], [[Japan]]"},"event":{"wt":"''OZ Academy Battle Big Bonus in Nagoya''"},"defenses":{"wt":"2"},"notes":{"wt":"This was a [[three-way match]] also involving [[Kakeru Sekiguchi|Kakeru]]."},"ref":{"wt":"<ref>{{cite web|url=https://www.cagematch.net/?id=1&nr=372119|title=OZ Academy Battle Big Bonus In Nagoya|work=cagematch.net|first=Philip|last=Kreikenbohm|date=July 30, 2023|access-date=July 30, 2023}}</ref>"}},"i":6}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"7"},"champion":{"wt":"{{sortname||Akino|Mika Akino}}"},"reign":{"wt":"2"},"date":{"wt":"{{dts|December 30, 2023}}"},"days":{"wt":"{{age in days nts|December 30, 2023|April 28, 2024}}"},"location":{"wt":"[[Tokyo, Japan]]"},"event":{"wt":"''OZ Academy Pray For Me''"},"defenses":{"wt":"0"},"notes":{"wt":"This was a [[three-way match]] also involving [[Ram Kaicho]]."},"ref":{"wt":"<ref>{{cite web|url=https://www.pwmania.com/oz-academy-pray-for-me-in-tokyo-results-december-30-2023|title=Oz Academy Pray For Me In Tokyo Results – December 30, 2023|work=PWMania|first=Ethan|last=Black|date=December 30, 2023|access-date=September 10, 2024|archive-url=https://web.archive.org/web/20231230191456/https://www.pwmania.com/oz-academy-pray-for-me-in-tokyo-results-december-30-2023|archive-date=December 30, 2023|url-status=live}}</ref>"}},"i":7}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"8"},"champion":{"wt":"{{sortname|Masked|Hanahana|Cherry (Japanese wrestler)}}"},"reign":{"wt":"2"},"date":{"wt":"{{dts|April 28, 2024}}"},"days":{"wt":"{{age in days nts|April 28, 2024|September 8, 2024}}"},"location":{"wt":"[[Tokyo, Japan]]"},"event":{"wt":"''OZ Academy Battle Big Bonus 2024''"},"defenses":{"wt":"1"},"notes":{"wt":"This was a [[three-way match]] also involving [[Leon (Japanese wrestler)|Leon]]."},"ref":{"wt":"<ref>{{cite web|url=https://www.wrestling-news.net/oz-academy-battle-big-bonus-2024-results/224333/|title=OZ Academy Results: Battle Big Bonus 2024 – Tokyo, Japan (4/28)|work=wrestling-news.net|first=Wayne|last=Daly|date=April 29, 2024|access-date=September 10, 2024|archive-url=https://web.archive.org/web/20240910073336/https://www.wrestling-news.net/oz-academy-battle-big-bonus-2024-results/224333/|archive-date=September 10, 2024|url-status=dead}}</ref>"}},"i":8}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"9"},"champion":{"wt":"{{sortname|Jaguar|Yokota}}"},"reign":{"wt":"1"},"date":{"wt":"{{dts|September 8, 2024}}"},"days":{"wt":"{{age in days nts|September 8, 2024|November 24, 2024}}"},"location":{"wt":"[[Fukuoka, Japan]]"},"event":{"wt":"''OZ Academy Battle Big Bonus 2024 Fukuoka''"},"defenses":{"wt":"0"},"notes":{"wt":"This was a [[three-way match]] also involving [[Unagi Sayaka]]."},"ref":{"wt":"<ref>{{cite web|url=https://www.bodyslam.net/2024/09/11/oz-academy-big-battle-bonus-results-september-8th-2024/|title=Oz Academy Big Battle Bonus Results (September 8th, 2024)|work=Bodyslam|first=Ethan|last=Black|date=September 11, 2024|access-date=September 24, 2024|archive-url=https://web.archive.org/web/20240925182902/https://www.bodyslam.net/2024/09/11/oz-academy-big-battle-bonus-results-september-8th-2024/|archive-date=September 25, 2024|url-status=live}}</ref>"}},"i":9}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"10"},"champion":{"wt":"{{sortname|Mayumi|Ozaki}}"},"reign":{"wt":"1"},"date":{"wt":"{{dts|November 24, 2024}}"},"days":{"wt":"{{age in days nts|November 24, 2024|March 20, 2025}}"},"location":{"wt":"[[Naha, Japan]]"},"event":{"wt":"''OZ Academy Battle Big Bonus 2024 Okinawa''"},"defenses":{"wt":"1"},"notes":{"wt":"This was a [[three-way match]] also involving [[Mika Akino|Akino]]."},"ref":{"wt":"<ref>{{cite web|url=https://www.cagematch.net/?id=1&nr=412641|title=OZ Academy Battle Big Bonus 2024 Okinawa|work=cagematch.net|first=Philip|last=Kreikenbohm|date=November 24, 2024|access-date=November 24, 2024}}</ref>"}},"i":10}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"sort number":{"wt":"10.5"},"type":{"wt":"vacated"},"date":{"wt":"{{dts|March 20, 2025}}"},"location":{"wt":"[[Tokyo, Japan]]"},"event":{"wt":"OZ Academy Battle Big Bonus 2025"},"defenses":{"wt":"yes"},"notes":{"wt":"[[Mayumi Ozaki]] was stripped from the title due for not being able to defend it in the scheduled event."},"ref":{"wt":"<ref name=\"Kakeru1\" />"}},"i":11}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"11"},"champion":{"wt":"{{sortname||Kakeru|Kakeru Sekiguchi}}"},"reign":{"wt":"1"},"date":{"wt":"{{dts|April 13, 2025}}"},"days":{"wt":"{{age in days nts|April 13, 2025|November 16, 2025}}"},"location":{"wt":"[[Tokyo, Japan]]"},"event":{"wt":"''OZ Academy Battle Big Bonus 2025''"},"defenses":{"wt":"2"},"notes":{"wt":"Defeated [[Itsuki Aoki]] and [[Ram Kaicho]] in a [[three-way match]] to win the vacant title."},"ref":{"wt":"<ref>{{cite web|url=https://www.cagematch.net/?id=1&nr=423470|title=OZ Academy Battle Big Bonus 2025|work=cagematch.net|first=Philip|last=Kreikenbohm|date=March 20, 2025|access-date=March 20, 2025}}</ref>"}},"i":12}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"12"},"champion":{"wt":"{{sortname|Sonoko|Kato}}"},"reign":{"wt":"1"},"date":{"wt":"{{dts|November 16, 2025}}"},"days":{"wt":"{{age in days nts|November 16, 2025|November 23, 2025}}"},"location":{"wt":"[[Naha, Japan]]"},"event":{"wt":"''OZ Academy Battle Big Bonus 2025 in Okinawa''"},"defenses":{"wt":"0"},"notes":{"wt":"This was a [[three-way match]] also involving [[Mika Akino|Akino]]."},"ref":{"wt":"<ref>{{cite web|url=https://www.cagematch.net/?id=1&nr=439665|title=OZ Academy Battle Big Bonus 2025 In Okinawa|work=cagematch.net|first=Philip|last=Kreikenbohm|date=November 16, 2025|access-date=November 16, 2025}}</ref>"}},"i":13}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"sort number":{"wt":"12.5"},"type":{"wt":"vacated"},"date":{"wt":"{{dts|November 23, 2025}}"},"location":{"wt":"[[Tokyo, Japan]]"},"event":{"wt":"OZ Academy Sonoko Kato Retirement ~ Final Blue Dragon"},"defenses":{"wt":"yes"},"notes":{"wt":"[[Sonoko Kato]] relinquished the title due to her retirement."},"ref":{"wt":"<ref name=\"KatoRetirement\" />"}},"i":14}},{"template":{"target":{"wt":"PWtitlereign\n","href":"./Template:PWtitlereign"},"params":{"number":{"wt":"13"},"champion":{"wt":"{{sortname|Ryo|Mizunami}}"},"reign":{"wt":"1"},"date":{"wt":"{{dts|April 26, 2026}}"},"days":{"wt":"{{age in days nts|April 26, 2026}}+"},"location":{"wt":"[[Tokyo, Japan]]"},"event":{"wt":"''OZ Academy Battle Big Bonus 2026''"},"defenses":{"wt":"1"},"notes":{"wt":"Defeated [[Rin Kadokura|Rin]] and [[Rina Yamashita]] in a [[three-way match]] to win the vacant title."},"ref":{"wt":"<ref name=\"BBB2026\">{{cite web|url=https://bodyslam.net/oz-academy-big-battle-bonus-results-april-26-2026/|title=Oz Academy Big Battle Bonus Results - April 26, 2026|last=Black|first=Ethan|work=Bodyslam|date=April 29, 2026|access-date=May 9, 2026|archive-url=https://web.archive.org/web/20260509210709/https://bodyslam.net/oz-academy-big-battle-bonus-results-april-26-2026/|archive-date=May 9, 2026|url-status=live}}</ref>"}},"i":15}},"\n",{"template":{"target":{"wt":"BundleEnd","href":"./Template:BundleEnd"},"params":{},"i":16}}]}'>