π Character stats
Blue Period characters: ages, heights & birthdays
The 21 most popular Blue Period characters, with how old and how tall each one is, their birthday and who voices them.
- characters
- 21
- characters
- heights listed
- 5
- heights listed
- Tallest
- 178 cm
- Utashima
- Shortest
- 166 cm
- Sumida
- Youngest
- 16
- Utashima
- Oldest
- 17-18
- Ryuuji Ayukawa
Every character at a glance
| Character | Age | Height | Birthday | Japanese voice |
|---|---|---|---|---|
 Yatora Yaguchi | β | 173 cm | July 5 Cancer | Hiromu Mineta |
 Ryuuji Ayukawa | 17-18 | 175 cm | October 18 Libra | Yumiri Hanamori |
 Maki Kuwana | β | β | April 23 Taurus | Yume Miyamoto |
 Yotasuke Takahashi | β | β | September 19 Virgo | Daiki Yamashita |
 Haruka Hashida | β | β | February 5 Aquarius | Kengo Kawanishi |
 Maru Mori | β | β | December 31 Capricorn | Mayu Aoyagi |
 Mayu Ooba | β | β | December 30 Capricorn | Yuuki Kazu |
 Masako Saeki | β | β | June 7 Gemini | Fumi Hirano |
 Kinemi Miki | β | 173 cm | August 16 Leo | Kana Hanazawa |
 Koigakubo | β | β | β | Shinichirou Kamio |
 Hanako Sakuraba | β | β | β | Saori Oonishi |
 Fumi Kamiyama | β | β | β | Atsumi Tanezaki |
 Utashima | 16 | 178 cm | March 28 Aries | Tatsumaru Tachibana |
 Shirota | β | β | β | Yuna Nemoto |
 Sumida | β | 166 cm | April 14 Aries | Masaya Fukunishi |
 Yuki Kuwana | β | β | β | Sayaka Oohara |
 Umino | β | β | β | Miku Hiratsuka |
 Sae Okada | β | β | β | Emiri Suyama |
 Shirai | β | β | β | Ikumi Hasegawa |
 Yamamoto | β | β | β | Aoi Koga |
 Takurou Ishii | β | β | β | Taishi Murata |
Ages and heights as listed on AniList; where a character grows up during the story, height is the latest one listed. Updated 2026-10-31.
Blue Period height chart
Blue Period characters by height
Tallest first, in cm
- Utashima178 cm
- Ryuuji Ayukawa175 cm
- Yatora Yaguchi173 cm
- Kinemi Miki173 cm
- Sumida166 cm
Show as table
| Item | Height (cm) |
|---|---|
| Utashima | 178 cm |
| Ryuuji Ayukawa | 175 cm |
| Yatora Yaguchi | 173 cm |
| Kinemi Miki | 173 cm |
| Sumida | 166 cm |
Blue Period birthdays through the year
- π February 5 Β· Haruka Hashida
- π March 28 Β· Utashima
- π April 14 Β· Sumida
- π April 23 Β· Maki Kuwana
- π June 7 Β· Masako Saeki
- π July 5 Β· Yatora Yaguchi
- π August 16 Β· Kinemi Miki
- π September 19 Β· Yotasuke Takahashi
- π October 18 Β· Ryuuji Ayukawa
- π December 30 Β· Mayu Ooba
- π December 31 Β· Maru Mori
Blue Period overviewFull cast & voice actorsπ€ Most popular characters
Blue Period characters FAQ
Who is the tallest character in Blue Period?
Utashima, at 178 cm, followed by Ryuuji Ayukawa (175 cm).
Who is the shortest character in Blue Period?
Sumida, at 166 cm, among the characters with a listed height.
Who is the youngest character in Blue Period?
Utashima, listed as 16.
How old are the main Blue Period characters?
Ryuuji Ayukawa is 17-18, Utashima is 16.
When are the Blue Period characters' birthdays?
Haruka Hashida: February 5; Utashima: March 28; Sumida: April 14; Maki Kuwana: April 23; Masako Saeki: June 7; Yatora Yaguchi: July 5; and 5 more on this page.