Miyanaga Jiro
Miyanaga Jiro
Nicknames Tora Jiro (虎じろう?)
Birth Info
Born October 1, 1969 (1969-10-01) (age 50)
Origin Yokohama, Kanagawa, Japan
Blood Type AB
Zodiac Sign Libra Libra
Professional Info
Genres J-pop, J-rock
Occupation Composer, arranger, guitarist
Years Active 1997–present
(23 years)
Agency Cube Group (1997-2000)
Label EMI Japan (1998-2000)
Associated Acts water
Twitter Twitter_2012.svg @jiromiyanaga

Miyanaga Jiro (宮永治郎) is a Japanese composer, arranger, and guitarist. He is also the guitarist and leader of the rock band water.

Miyanaga has also written songs for the female rock band ZONE under the name Tora Jiro (虎じろう).


Miyanaga Jiro was born on October 1, 1969 in Yokohama, Kanagawa, Japan. He attended Higashi Katsushika High School in Chiba Prefecture and graduated from Sophia University's Department of Education.

In 1994, Miyanaga joined a rock band which was later named water in 1996. The band signed with Cube Group in 1997 and made their major debut a year later under the EMI Japan label. water broke up in 2001, but reformed in 2006.[1]

He has arranged songs for various Hello! Project artists and all-female rock bands such as ZONE and SCANDAL. Since 2014, he has worked on the majority of LoVendoЯ's songs and has performed in their concerts as a supporting guitarist.


  • Name: Miyanaga Jiro (宮永治郎)
  • Aliases: Tora Jiro (虎じろう)
  • Birth Date:October 1, 1969 (1969-10-01) (age 50)
  • Birthplace: Yokohama, Kanagawa, Japan
  • Blood Type: AB
  • Western Zodiac: Libra
  • Eastern Zodiac: Rooster

Song CreditsEdit

Abe NatsumiEdit



Ciao Bella CinquettiEdit

Country GirlsEdit


Kanazawa TomokoEdit


Kobushi FactoryEdit


Melon KinenbiEdit

Tsukishima Kirari starring Kusumi Koharu (Morning Musume)Edit


  1. "water" (in Japanese). TOWER RECORDS ONLINE.

External LinksEdit

Community content is available under CC-BY-SA unless otherwise noted.