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Eleceed Character Guide: Jiwoo, Kayden, and the Full Cast

Eleceed's cast makes sense once you sort it into three circles: Shinhwa at home, the World Awakened Academy abroad, and Frame against everyone.

VerdictLearn Jiwoo, Kayden and the Yu siblings first; everyone else slots into Shinhwa, the World Awakened Academy or Frame, and the rank labels tell you how scared to be.

Updated Published 9 min readBy Léo FontaineLast reviewed

This Eleceed character guide starts with the trick that makes the cast easy: sort it into three circles. The Shinhwa Association is at home in Korea, the World Awakened Academy is abroad, and Frame works against both. At the center are two names you need before anything else: Jiwoo Seo, the kid with super speed, and Kayden Break, the very dangerous man stuck in a very fat cat.

Eleceed official series cover art cropped wide, Jiwoo Seo in a hoodie beside Kayden Break in his oversized white cat form

Eleceed (일렉시드) is written by Son Jeho and drawn by Zhena, and it has run on Naver Webtoon since October 2018; in English it's on WEBTOON every Tuesday. The Eleceed character guide below covers who's who in the manhwa, with spoilers flagged. For where each arc starts, use our Eleceed reading guide; for whether the series is worth your time, see the Eleceed review.

Eleceed character guide: Jiwoo Seo and Kayden Break

AniList character portraits: Jiwoo Seo smiling with light brown hair, beside Kayden Break in human form smirking under long blue-black hair Jiwoo Seo and Kayden Break. Character images via AniList.

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Jiwoo Seo is a kind-hearted high schooler who loves street cats. He lives alone in Seoul while his mother works as a scientist overseas, and he's hidden his super speed for years; AniList's bio says he had no friends as a kid because he was afraid people would treat him like a freak. His first friend was a stray cat. Under Kayden's teaching he picks up the electricity attribute, which is the whole joke of the title: Eleceed is Electricity plus Speed. In the Japanese anime he's renamed Yu Kazahaya and voiced by Junya Enoki.

Kayden Break is one of the most dangerous and notorious Awakeners alive, obsessed with fighting the world's top 10. When the story opens, three of those top 10 have already injured him, he's fled to South Korea, and he's accidentally turned himself into a fat street cat while hiding. Jiwoo finds him and takes him home. AniList calls him the strongest unaffiliated person in the world, and lists one alias: Casein Nitrate.

Their relationship is the series. One reader in an r/manhwa thread about whether Eleceed is worth reading put it in one line: "the MC gets stronger and his teacher gets kinder, and their friends group gets bigger. That's kind of the story." That's a fair map for this guide too.

Korea: Shinhwa and Jiwoo's friends

The Shinhwa Association keeps the Awakened world hidden from ordinary people, teaches new Awakeners the basics and gives them support.

  • Ji-Yeong Yu (Jiyoung Yoo in some translations) leads Shinhwa. She's a wind user and widely called the strongest Awakener in South Korea, and she takes a personal interest in Jiwoo as his sponsor.
  • Ji-Seok Yu is her younger brother, also a wind user, and one of the strongest teenage Awakeners in Korea; only a few his age can rival him. He becomes one of Jiwoo's friends.
  • In-Hyeok Gu works Shinhwa business alongside Ji-Yeong and is said to sit somewhere in Korea's top 20.
  • U-In (Wooin) was a student of Dr. Delein, has no affiliation and uses telekinesis. He ends up in Jiwoo's friend group.
  • Su-Bin Lee is the granddaughter of the Awakened Union's leader, a cryokinesis user about as strong as Ji-Seok, and another friend.
  • I-Seul Ju represents Mir, an organization of animal-control Awakeners, and owns a huge white dog named Duri.
  • Seong-Ik Han is principal of Korea's Awakened Academy, a former leader of Baekho, and was once called the strongest Awakener in the country.

Abroad: the World Awakened Academy

Later arcs bring in the World Awakened Academy, with its own student rankings and a lot more rich families.

  • Garrith Luterain is the headmaster. Her ability is Animal Communion, and she fights with a mythical owl named Phoenix. Her grandson Cain Luterain has the same ability and fights with a mythical panther, Lancelot.
  • Leah Eresby is student council president and one of the Academy's top 10 students. That's a school ranking, not a world ranking.
  • Veramonte Patrick is one of the world's top 10 Awakeners. His grandsons Jurion and Ian Patrick both use Shadow Manipulation.
  • Top rookies you'll meet early: Arthur Bryan (rising prodigy of the Bryan family), Glant Gesimov (Body Hardening), Jean (pyrokinesis, sponsored by an organization called Omega), Dale Pigarun, and Duke Grane.

For the anime side of this cast, including the first confirmed voice actors, read Eleceed Anime Release Date.

Frame: the people working against everyone

AniList character portraits of three Frame members: Muse with dark green hair, Vatore with long teal hair holding a teacup, and grey-skinned Earthquake in a spiked collar Muse, Vatore and Earthquake. Character images via AniList.

Frame is the organization behind most of the later conflict. Its known members:

  • Muse (alias Alpha), a top-level executive and disciple of Suffrey Basseterre, who is one of the world's top 10.
  • Roist, a top-ranking executive, disciple of Schnauder (also romanized Schneider, another top 10 Awakener tied to Frame) and brother-in-law of Duke Grane, whom he treats as a lucky upstart.
  • Vatore, a world top 50 Awakener who is very proud of his looks and holds a grudge against Kayden for the scar their fight left across his face.
  • Morthius, a subordinate of someone called Greg, and another world top 50.
  • Earthquake, a top executive and world top 50.

Spoilers for the Academy arc: AniList's bios reveal that Duke Grane is a traitor working for Frame, that the Academy's vice president Fiord is a Frame member planning to wipe out the rookies, and that professor Andrea is also Frame. Andrea and Earthquake are both killed by Kartein, the healer whom Wikipedia describes as able to make an impenetrable defense and heal almost any injury, and who turns away most Awakeners who come asking for treatment.

Eleceed character guide to the rankings

Eleceed tells you how scared to be through rank labels, and there are three scales: world, Korea, and the Academy.

LabelWhat it meansExamples
World top 10The strongest Awakeners aliveVeramonte Patrick, Suffrey Basseterre, Schnauder, Guestella
World top 50The tier below, where Frame's muscle sitsVatore, Morthius, Earthquake, Pluton, Mei
Korea's top 20A national rankingIn-Hyeok Gu, Seong-Ha Park
Academy top 10Student rank inside the World Awakened AcademyLeah Eresby, Duke Grane, Glant Gesimov

Don't read an Academy top 10 as a world top 10: Leah Eresby is a school star, not a Veramonte. Guestella, one of the world's top 10, is notable as the only member of that group who accepted Kayden's challenge.

Amyeong and Jiwoo's mother

Older summaries, including the first version of this page, called Amyeong Jiwoo's mother. That's wrong. AniList lists Jiwoo's mother as a separate character, Yu-Jeong Kang. Amyeong (also called Dark or Rui) is an assassin and Kayden's former apprentice. Spoiler: Yu-Jeong Kang's bio hints that she was involved in Amyeong's past, helped him escape, and calls him "Rui."

Our Take

If you're coming back after a break, re-learn four names: Jiwoo, Kayden, Ji-Yeong and Ji-Seok. Almost every other character is defined by which circle they stand in, and the rank label beside a new name tells you whether the next fight is a lesson or a disaster. We'd skip the fan wikis' giant tables and use the three circles above instead; they hold up across the whole run so far.

The anime's first main trailer, from the official Eleceed anime channel. Dandelion Animation Studio is making the series for 2027.

How We Checked This

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On October 21, 2026 we pulled Eleceed's full character list from AniList (three pages of entries, roles and bios) plus the anime entry's Japanese voice cast, read Wikipedia's Eleceed article, and opened the WEBTOON page for the schedule. Every name, ability, rank and relationship above has a quoted row in our sources table. The re-check found one real error: Amyeong is not Jiwoo's mother. We also removed a claim that "Casein Nitrate" is an anagram of Kayden's name (it isn't) and a third world tier that no source mentions. The two portrait strips were matched against AniList's character images.

Last reviewed: October 21, 2026

Frequently Asked Questions

Who is Jiwoo Seo in Eleceed?

The protagonist: a kind high schooler in Seoul who hides his super speed and spends it saving people and street cats. Under Kayden's training he gains the electricity attribute, which is where the title comes from (Electricity plus Speed).

Who is Kayden Break?

One of the most dangerous Awakeners in the world. Injured by three of the world's top 10, he flees to South Korea and accidentally turns into a fat street cat while hiding. Jiwoo takes him home, and he ends up as Jiwoo's teacher.

Is Amyeong Jiwoo's mother?

No. AniList lists Jiwoo's mother as a separate character, Yu-Jeong Kang. Amyeong is an assassin and Kayden's former apprentice, and later chapters hint that Jiwoo's mother is tied to his past.

  • Eleceed Reading Guide: where each arc starts, so you can match these names to the chapters you're on.
  • Eleceed Review: our verdict on whether the Jiwoo and Kayden dynamic holds up over the long run.
  • Manhwa Like Eleceed: seven picks sorted by which part of the hidden-power, mentor-and-student setup you want more of.
  • Best Found Family Manhwa 2026: where Eleceed's growing friend group ranks among chosen-family stories.

References

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About the author

Léo Fontaine

Anime: adaptations and studios

ChapterBrief byline for anime adaptations: pacing against the source, animation quality, and studio track records. Dry, craft-focused, never mean.

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This article is published for informational and entertainment purposes. It does not constitute professional financial, legal, or technical advice. Series availability, platform access, translation status, and chapter counts change. Verify critical details (pricing, regional availability, official translation status) with publishers and platforms. Affiliate links, where present, help support our editorial work and are labelled in our affiliate disclosure.