Ran Yu - Yu Ran Yu - Yu ( born Tomoko Miyaguchi born August 17 , 1975 ) is a retired Japanese professional wrestler . Best known as a tag team wrestler , Yu - Yu held the JWP Tag Team Championship a record seven times , the Daily Sports Women ' s Tag Team Championship three times , the AAAW Tag Team Championship and the Oz Academy Tag Team Championship twice each and the International Ribbon Tag Team Championship and Wave Tag Team Championship once each . Yu - Yu also excelled in singles competition , most notably winning the JWP Openweight Championship and Oz Academy Openweight Championship . She finished her 18 - year career on December 9 , 2012 . Career History . Miyaguchi started her professional wrestling career in 1994 , working under her real name in JWP Joshi Puroresu . She made her debut on December 4 , 1994 , in a match against Rieko Amano . Originally working as a " junior " wrestler in not only JWP , but also All Japan Women ' s Pro - Wrestling ( AJW ) and GAEA Japan , Miyaguchi went on to win the Junior Championships in both JWP and AJW . After the end of her junior days , Miyaguchi adopted the new ring name Ran Yu - Yu , which she held for the rest of her career . Under her new ring name , Yu - Yu went on to win the JWP Openweight Championship in 1999 . She remained affiliated with JWP until October 2002 , when she officially joined GAEA Japan full - time . In GAEA Japan , Yu - Yu formed the highly successful Uematsu☆Ran tag team with Toshie Uematsu . The two remained together for ten years , winning GAEA Japan ' s AAAW Tag Team Championship twice , JWP ' s Daily Sports Women ' s Tag Team Championship twice , the JWP Tag Team Championship four times , and the Wave Tag Team Championship once , while also winning JWP ' s Tag League the Best tournament in 2012 . On April 30 , 2012 , Yu - Yu and Uematsu defeated Moeka Haruhi and Shuu Shibutani in Uematsu ' s retirement match . Following the folding of GAEA Japan in 2005 , Yu - Yu began working as a freelancer though effectively making Oz Academy her new home promotion . In Oz Academy , Yu - Yu became a two - time Tag Team Champion with Akino , with the two representing Aja Kong ' s Jungle Jack 21 stable . On April 29 , 2011 , Yu - Yu defeated Kong to win the Oz Academy Openweight Championship . After a three - month reign , she lost the title to Dynamite Kansai . Shortly after her longtime tag team partner Toshie Uematsu had announced her retirement , Yu - Yu followed suit and announced that she would retire before the end of 2012 . On November 11 , Oz Academy founder Mayumi Ozaki was announced as Yu - Yu ' s opponent for her retirement match on December 9 . Having quit Jungle Jack 21 and joined the villainous Seikigun stable on September 23 , 2011 , in order to get another shot at the Oz Academy Openweight Championship , Yu - Yu reunited with her old stablemates for her final self - produced event , titled Starlight ' s Regret , on December 2 , 2012 , which saw Yu - Yu , Aja Kong , Akino , Hiroyo Matsumoto and Tomoka Nakagawa defeat Carlos Amano , Chikayo Nagashima , Meiko Satomura , Sonoko Kato and Tsubasa Kuragaki in a ten - woman tag team match that lasted over an hour . On December 6 , Yu - Yu wrestled her final matches for her original home promotion , JWP . First she wrestled Arisa Nakajima to a fifteen - minute time limit draw and then won a twelve - woman main event battle royal , where all participants were dressed as her , scoring the last elimination over Kazuki . On December 9 , Yu - Yu was defeated by Ozaki in her advertised retirement match , following interference from Ozaki ' s Seikigun stable . However , immediately afterwards , Yu - Yu teamed with Carlos Amano to defeat Ozaki and Dynamite Kansai , pinning Ozaki for the win in the final match of her career .