Natsuya Kirishima
Natsuya Dive to the Future
Kanji 桐嶋 夏也
Rōmaji Kirishima Natsuya
Also known as Natsuya-senpai

Aniki (by Ikuya)

Gender Male
Sign Leo
Birthday August 20th
Age 14-15 (High☆Speed!)

19-20 (Free! Take your marks!) 20-21 (Free! Dive to the Future)

Height 168 cm (5'6") (High☆Speed!)

185 cm (6'1") (Free! Take you marks!)

Professional Status
Occupation Team сaptain (former)
Affiliation Iwatobi Junior High School (former)
Iwatobi Swimming Club (former)

Soufukan High School (former)

Swim Style Freestyle
Events 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

Natsuya Kirishima (桐嶋 夏也 Kirishima Natsuya) is a junior high student who debuted in the second volume of the light novel High☆Speed! written by Kōji Ōji.[1] He is a minor character in High☆Speed!-Free! Starting Days-, Tokubetsuban Free!-Take Your Marks- and Free!-Dive to the Future-. He is the older brother of Ikuya Kirishima.


Natsuya is a relatively tall and muscular young man with short, unruly brown hair and amber eyes.


Natsuya is a boisterous, keen, and upbeat character. On the surface, he doesn't seem deterred by much but shows a vulnerable side to his friend Nao Serizawa after feuding with his younger brother. He is angered easily by Haruka Nanase's apparent disobedience and impassivity. He is kind and firm, aspects shown often around his team. He is also shown to have a low alcohol tolerance.[2]


Kirishima Natsuya was the captain of Iwatobi Swimming Club in Iwatobi Junior High School. His little brother, Ikuya Kirishima, also participated in his team. One of his closest friends was Nao, the team manager. He ended up recruiting Haruka Nanase, Makoto Tachibana, Asahi Shiina and his younger brother for the team shortly after they began their first year of middle school. The movie and light novel ends with him still holding his title as the captain of the team.


Main article: Natsuya Kirishima/Plot


He appears to have a good relationship with Nao. The tension between him and Ikuya eases up toward the end of the light novel. Although his little brother is already an adult, Natsuya still treat him just like a little kid, it was shown in Free! Take your marks! that Natsuya still cannot believe that Ikuya's not the same person who he knew in the past and said that he missed the past Ikuya. He seems easily agitated by insolence, as shown by the younger members of the team when they were not cooperating with each other.

Main article: Natsuya Kirishima/Relationships


  • Natsuya's least favorite subject is Math.
  • His motif animal is a tiger shark.[3]
  • He hates shiitake mushrooms but will eat them when he is with Ikuya to set a good example[4]
  • His favorite quote is said by Mihail which is “Victory only comes to those who believe in themselves,” which he interprets as ‘the results depend on you.’


  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


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