Chihiro Mizuki is a Japanese professional wrestler better known by his ring name Andy Wu (アンディ・ウー, Andi ū) who currently works for Wrestle-1.

All Japan Pro Wrestling (2012–2013)

Andy Wu debuted for All Japan Pro Wrestling on July 15, 2012, teaming with Yasufumi Nakanoue in a losing effort against Minoru Tanaka and Gillette. In July, he entered the 2012 Junior Hyper League but finishes with no wins. He also competed in the 2013 Junior Hyper Tag League with Sushi and managed to pick up two wins but would not proceed to the next stage. Afterwards, Wu would go on a learning excursion to Mexico to train under Pantera. He wrestled briefly whilst in Mexico, making rare appearances in Queretaro in the summer and wrestling a dark match for International Wrestling Revolution Group on August 18.

Wrestle-1 (2013–2020)

On November 16, 2013, Wu debuted for Wrestle-1, teaming with Daiki Inaba and El Hijo del Pantera to defeat Hiroshi Yamato, Mazada and Nosawa Rongai. From his debut, Wu feuded with Tokyo Gurentai's Mazada and regularly teamed with El Hijo del Pantera. On January 12, 2014, he defeated veteran Mazada in a singles match at Korakuen Hall. At Kaisen: Outbreak, Wu, Inaba and Yamato lost to Tokyo Gurentai. On April 17, Wu defeated Mazada in another Korakuen Hall singles match. On July 6, at Ryōgoku Kokugikan, Wu and Inaba defeated Mazada and Rongai. Wu and El Hijo del Pantera moved onto feuding with Novus, a stable off wrestlers from the defunct Wrestling New Classic. At Total Nonstop Action Wrestling's Bound for Glory, Wu and El Hijo del Pantera lost to Jiro Kuroshio and Yusuke Kodama. On February 13, 2015, after Wu and El Hijo del Pantera lost to Kazma Sakamoto and Koji Doi, the pair argued which ultimately led to El Hijo del Pantera joining the Desperado stable. They briefly feuded; El Hijo del Pantera defeated Wu in the opening round of the tournament to crown the first Wrestle-1 Cruiser Division Champion, but it came to an end on June 20 when the pair shook hands after Wu defeated El Hijo del Pantera.

Freelance (2020-present)

Since Wrestle-1's closure, Wu has wrestled most notably for Big Japan Pro Wrestling and Pro Wrestling Zero1. On November 23, he unsuccessfully challenged Tatsuhiko Yoshino for the BJW Junior Heavyweight Championship