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Character file · Beyblade Burst

Shu Kurenai

Kurenai Shū · 紅シュウ

Rival Raging Bulls Beyblade BurstBeyblade Burst EvolutionBeyblade Burst TurboBeyblade Burst Rise
First seen
Beyblade Burst, Episode 01 - Let's Go! Valtryek!

7

series

115

episodes on record

8

Beyblades

18

special moves

Biography

Shu Kurenai is Valt Aoi's childhood best friend, rival, and Beyblade Burst's deuteragonist -- a calm, hardworking prodigy who briefly turns into the ruthless masked villain Red Eye after losses to Free De La Hoya and Lui Shirosagi push him toward the Snake Pit. Wielding first Storm Spryzen and then the corrupting Spryzen Requiem, he's only freed from his Bey's mind control when Valt defeats him in the International Blader's Cup finals. He returns across every later season as a legendary Blader, owner of the Raging Bulls, and mentor to younger Bladers like Fubuki Sumiye and Lain Valhalla.

Appearance and personality

What They Look Like, and How They Behave

Shu is tall for his age, with shaggy white hair and bright crimson eyes, plus a scar over his right eye from an old fight with Lui Shirosagi that stays hidden under his hair until he reveals it after a win. His Burst outfit is a pink shirt with a black-and-red striped tie, a high-collared black vest over white, and a red fingerless glove. As the masked Red Eye in Evolution he hides his face and wears a white sleeveless tailcoat with red accents over a black-and-red bodysuit, his hair grown noticeably longer, until the mask breaks partway through and he eventually cuts his hair back down. Turbo, Surge and QuadDrive each rework that same pink-shirt-and-glove base with different coats, vests and boot colours as the seasons go on.

Hardworking rather than merely gifted, Shu is disciplined enough to become one of the sport's best, beating Valt Aoi to his first WBBA title within a year. Calm, patient and often alone, he keeps a cool front that hides real intensity, and he can seem standoffish or aloof to people he doesn't know well — Valt and Xander Shakadera are exceptions he genuinely opens up to. He's also a capable cook and a sharp observer of others. Losing Storm Spryzen and then a match to Free De La Hoya pushes him toward perfectionism, and as Red Eye within the Snake Pit he turns quiet, ruthless and willing to destroy rivals' Beys, cutting himself off from his friends before eventually finding his way back.

Blader Profile

Shu Kurenai, rated

  • Attack 9/10
  • Defense 7/10
  • Stamina 8/10
  • Technique 10/10
  • Spirit 9/10

beybladewiki.com editorial rating — based on on-screen performance, not official stats.

A relentlessly hardworking prodigy with a devastating counter game who pushed Lui to the limit, though Valt, Phi and later champions beat him in the biggest finals.

On file

The record

Team
Raging Bulls
Beyblades
Spryzen Spread Fusion; Storm Spryzen Knuckle Unite; Legend Spryzen 7 Merge; Spryzen Requiem 0 Zeta; Turbo Spryzen 0Wall Zeta; World Spryzen Unite' 2B; Astral Spryzen Over Quattro-0; Bolt Spryzen Xanthus-Q Quattro-Q+Jaggy-1
First appearance
Beyblade Burst, Episode 01 - Let's Go! Valtryek!
Japanese name
紅シュウ
Romaji
Kurenai Shū
Also known as
Red Eye (Formerly) / Shu-kun (By Nika) (Japanese version) / Spryzen (Formerly) / The Crimson Flame
Gender
Male
First manga appearance
Beyblade Burst Explosive Preview
Voice (Japanese)
Junya Enoki
Voice (English)
Adrian Petriw (Burst, Evolution) / Alan Lee (Turbo-QuadStrike)

Beyblades

Shu Kurenai's Beyblades

  1. Spryzen Spread Fusion
  2. Storm Spryzen Knuckle Unite
  3. Legend Spryzen 7 Merge
  4. Spryzen Requiem 0 Zeta
  5. Turbo Spryzen 0Wall Zeta
  6. World Spryzen Unite' 2B
  7. Astral Spryzen Over Quattro-0
  8. Bolt Spryzen Xanthus-Q Quattro-Q+Jaggy-1

Special moves

Called shots

Counter BreakUpper LaunchRequiem WhipCrux BoostAstral SparkAstral WhipTurbo Crux BoostRequiem SpinUltra Counter BreakAstral Counter BreakWorld Counter BreakWorld WhipTurbo Spryzen WhipTurbo Counter BreakWorld SpinLightning LaunchTurbo Upper LaunchUltra Upper Launch

Briefing

What to know

  • Valt Aoi's best friend since childhood; the Burst franchise's deuteragonist
  • Fights initially with Storm Spryzen Knuckle Unite, evolving through many later Spryzen forms
  • Becomes the masked villain Red Eye in Evolution after losing to Free De La Hoya
  • Creates Spryzen Requiem through the Snake Pit's Requiem Project, then is mind-controlled by it
  • Freed from Spryzen Requiem's control only after losing the final to Valt Aoi
  • Becomes owner of the Raging Bulls and mentor to Fubuki Sumiye in Turbo
  • Later mentors Lain Valhalla in Surge, eventually helping free him from his own dark power
  • Ambidextrous -- switches launching hands because of a recurring shoulder injury
  • Voted the single most popular Beyblade Burst character in Japan's 2018 and 2020 polls

Notable battles

  • vs Valt Aoi in Beyblade Burst Episode 14-15 — Win (3-2)
  • vs Lui Shirosagi in Beyblade Burst Episode 48-49 (National Tournament semi-final) — Lose (2-3)
  • vs Valt Aoi (as Red Eye) in Beyblade Burst Evolution Episode 16 — Win (3-0)
  • vs Lui Shirosagi (as Red Eye, identity revealed) in Evolution Episode 36 — Lose (1-3)
  • vs Valt Aoi in Evolution Episode 50-51 (International Blader's Cup final) — Lose (2-4)
  • vs Phi in Beyblade Burst Turbo Episode 46-47 — Lose (1-3)
  • vs Lain Valhalla in Beyblade Burst Surge Episode 18 — Lose (0-2)
  • vs Bel Daizora in Beyblade Burst QuadDrive Episode 10 — Lose (0-2)

Quotes

In Their Own Words

  • I'm not really a 'club joining' kind of guy.
  • You know he can't hear you, right? This is how Valt is; he loses his cool.
  • You're not doing yourself any favors underestimating Valt.
  • Not cool to smack-talk your own teammates.
  • Hey! We won as a team!
  • We're all bladers here. There's only one way to settle this: with our beys!
  • I think I know my own limits, okay? Don't jump to conclusions!
  • When I win, I realize how much Beyblade has changed my life for the better.
  • (sighs) It was Rantaro.
    when the others want Shu to tell them who won the race
  • Don't make me regret letting you in.

Sightings

Episodes they appear in

From our own episode records — the cast, Beyblade and debut lists we compiled show the name here.

Also on record

Episodes that mention them

The name turns up in what happens in these episodes rather than in their cast lists, so read them as leads, not as a credit.

Also on record

Named elsewhere on this site

Tournament reports, testing threads, rules announcements, news and fake or leak checks carrying this name. Each link opens that section with the name already searched for.

Cross-references

Teams, places and more

Bit-beasts & avatars 1

Places 5

Teams 4

Attributed, not verified by us

Claims We Could Not Check

  • First Burst character to have his Beyblade destroyed, and one of few to have it happen twice.
  • Family name 'Kurenai' means 'crimson,' following the Burst cast's color-name pattern.
  • His personality shift as Red Eye is compared to Brooklyn's dark turn in the original series.
  • One of five franchise characters to use a Dual-Spin Bey.
  • Manga artist Hiro Morita has named Shu his favorite Burst character to draw.

The Blader Profile is our own reading of how the character performs on screen or on the page, not a figure from the makers.