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Natsuya Kirishima
Natsuya Dive to the Future.jpg
Kanji 桐嶋 夏也
Rōmaji Kirishima Natsuya
Also known as Aniki (by Ikuya)
Gender Male
Sign Leo ♌
Birthday August 20th
Age 14-15 (High☆Speed!)

19-20 (Free! The Movie -Take Your Marks-)
20-21 (Free!-Dive to the Future-)

Height 168 cm (5'6") (High☆Speed!)

185 cm (6'1") (Free!-Dive to the Future-)

Professional Status

Free-lance swim competitor

Education Soufukan High School (former)

Unnamed U.S. high school (former)
Iwatobi Junior High School (former)
Unnamed elementary school (former)

Clubs Iwatobi Junior High School Swim Club (former)

Bandou Swimming Club (former)

Position Captain

(Iwatobi Jr High School Swim club; former)

Swim Style

Individual medley

Events 400 m individual medley
Personal Status
Relatives Ikuya Kirishima (younger brother)


Anime High☆Speed!-Free! Starting Days-
Light Novel Volume 2
Voice Actors
Japanese Kenji Nojima
English Ricco Fajardo
Emily Fajardo (child)

Natsuya Kirishima (桐嶋 夏也 Kirishima Natsuya) is a supporting character in the anime series Free!, beginning with the light novel High☆Speed! written by Kouji Ohji. [1]. He was captain of the Iwatobi Junior High School Swim Club, playing an pivotal role in the development of Haruka Nanase, Makoto Tachibana, Asahi Shiina and younger brother, Ikuya Kirishima. He is now a college-aged individual who competes as a free-lance competitive swimmer following his graduation from high school.


Natsuya is a relatively tall and muscular young man. He has vermillion eyes and short, unruly brown hair with bangs that dip betwen his eyes.


Natsuya is a boisterous, keen, and upbeat character although according to his best friend, Nao Serizawa, he is somewhat socially awkward. On the surface, he doesn't seem deterred by much, but shows a vulnerable side to Nao. As Captain of the juior high school swim club, Natsuya is kind but firm.

He is also highly competitive, as seen when first-year team member, Haruka, claims that he only swims freestyle and the team captain challenges him to a race to determine if this will be so. Their race ends in a tie with Natsuya respecting Haruka's ability, but continuing to monitor and challenge him.

Natsuya cares deeply for his younger brother, Ikuya. They are close until Natsuya decides that he must push Ikuya to be less dependent on him. This, while Ikuya is only in elementary school. He distances himself from his sibling without explanation, a move that distresses Ikuya and damages their relationship for several years.

Natsuya is an excellent swimmer, capable of earning a living via free-lance racing, which he does following high school. He is also shown to have a low alcohol tolerance despite a penchant for imbibing.[2]


Natsuya is the captain of the Iwatobi Junior High School Swim Club. His younger brother, Ikuya, is also a member of the team. His best friend, Nao, is the team manager. Natsuya recruits Haruka, Makoto, Asahi and Ikuya (against his will) for the team shortly after they begin their first year of junior high school. Both the light novel and movie, High☆Speed!-Free! Starting Days-, depict his tenure as swim club team captain while season 3 of the anime, Free!-Dive to the Future-, depicts Natsuya as a free-lance competitive swimmer after high school.


Main article: Natsuya Kirishima/Story


Main article: Natsuya Kirishima/Relationships


  • His motif animal is a tiger shark.[3]
  • Natsuya's least favorite subject is math.
  • He hates shiitake mushrooms, but will eat them when he is with Ikuya in order to set a good example[4]
  • His favorite quote is said by Mikhail Makarovich Nitori which is, "Victory only comes to those who believe in themselves," which he interprets as the results depend on you.
  • At a staff talk event for Free!–the Final Stroke–, one of the character designers discussed the main characters' body types in terms of musculature. Natsuya was listed as being "type 4:" noticeably muscular, but still not quite as large/strong as the final two types. It was also specified that Futoshi Nishiya stressed that Natsuya specifically had very "hard" muscles.[5]
  • Those born under Leo are passionate, generous and creative, but can also be arrogant, aggressive and stubborn. They like socializing and leading others, and dislike facing hard truths and not being treated royally. Those born on Aug 20 must learn to embrace change that develops personal efficacy, particularly in times of crisis. Traits are affected by the position of the moon and other planets at the time of birth.[6]


  1. High☆Speed! Official Website (Japanese)
  2. Free!-Dive to the Future- Episode3
  3. Free!-Dive to the Future- Starter Book Character Profile (translated by donamoeba on Tumblr)
  5. Free!–the Final Stroke– staff talk event, translated by denkimouse on Twitter