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Anime / Sk8 the Infinity

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The main skaters featured in the show. Clockwise from top-right: 

SK8 The Infinity (known in Japan as SK∞) is an ongoing Sports Anime animated by Studio BONES and directed by Hiroko Utsumi, known for Free! and the anime adaptation of Banana Fish. Originally airing on January 10, 2021, SK8 The Infinity revolves around "S", a secret downhill skateboarding race held in an abandoned mine in Okinawa where pretty much anything goes as long as someone reaches the finish line. Reki Kyan is obsessed with "S", and when New Transfer Student Langa Hasegawa moves to Okinawa from Canada, the two form a bond as Reki teaches Langa to skate. However, Langa may be better at skating than he initially seems...


This show provides examples of:

  • 2D Visuals, 3D Effects: The backgrounds during the skateboarding scenes are rendered with computer graphics.
  • Animal Motifs: Miya resembles a cat with his sly personality and cat-themed outfit.
  • Agent Peacock: Adam utilizes a flashy red matador suit with an equally flashy mask to hide his identity to the world of S. He's considered to be one of the best skaters despite of it.
  • Anime Hair:
    • Reki has spiky, bright red hair that makes him very easy to point out in crowds.
    • Adam, in his matador costume, has vivid blue hair that's even spiker than Reki's.
  • Awesomeness by Analysis: One of the Reki's biggest strengths. Judging a person's position and technique when skating, he can deduce what needs to be refined or fixed with the board so that the skater in question can skate to their fullest.
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  • Bad Boss: Adam continuously ignores Tadashi's requests and suggestions to focus on his own goals, even calling him a "dog" at one point when Tadashi suggests to postpone his match with Reki. Judging by Tadashi's detached look, it seems that he's rather used to it.
  • Beach Episode: Episode 6 doubles as a beach episode and a Hot Springs Episode.
  • Beauty Mark: Tadashi has a single mole underneath his right eye.
  • Beginner's Luck: Langa beats Shadow in his very first race, despite having never skateboarded before and duct-taping his feet to the board. However, this is justified as Langa has 15 years of experience snowboarding, so he was able to transfer some of his techniques to skateboarding. Then when Langa learns to skateboard normally, he frequently falls on his ass, showing that he is not immediately perfect at the sport. He gets better rather quickly though.
  • Canada, Eh?: Langa is half-Canadian and just recently moved to Okinawa from there. Although he does not act stereotypical, those stereotypes are invoked in episode 2's preview where Reki asks Langa about Canada. Also, he does really like poutine as seen in episode 4 as he orders an extra large version at the fast food restaurant.
  • Cast of Snowflakes: All of the characters are visually very distinct from each other in some way, whether it's hair color or facial features.
  • Child Prodigy: Miya is one, being a contender for Japan's national skating team despite being in middle school.
  • The Comically Serious: Langa rarely shows emotion, which makes it all-the-more hilarious when he tumbles or is part of a Funny Background Event all stone-faced.
  • Cool Board: The characters have their own skateboards with cool designs on them, but special notice goes to Cherry Blossom's skateboard Carla, which is a hi-tech AI-powered skateboard that can calculate angles for turns, among other things.
  • Cue the Rain: Just as Reki hits an emotional rockbottom, it begins to rain.
  • Cultured Badass: Cherry Blossom is a calligraphy expert and is a highly-skilled skater with the knowledge to back it up.
  • Custom Uniform: Reki wears a hoodie over his school uniform.
  • Depraved Homosexual: While his sexuality isn't confirmed, Adam plays with the Depraved Homosexual or Depraved Bisexual trope. He is not only dangerous, but his skateboarding moves and mannerisms ooze sex appeal as his theme is "love." Not to mention, his fixation on Langa borders on more than just admiration, and he also has a sexually suggestive conversation with him in the preview for episode 5. Then there's the fact that he calls him his "EVE" in the heat of their race of episode 5, becoming enamored with him by the end.
  • Disappeared Dad: Langa's father died sometime before the events of the series.
  • Do Not Call Me "Paul":
    • Cherry Blossom has a hilarious moment in episode 2 when Joe calls him his real name, Kaoru. Complete with a full body kick and all.
    • Episode 5 also has another moment with Cherry Blossom, this time when Reki calls him his S name outside of S.
  • Dogged Nice Guy: In his daily life, Shadow has a huge, comical crush on his manager and often does more than necessary to help around the flower shop.
  • The Dreaded: Adam is very much this In-Universe, being a highly intimidating skater that not only has some serious skill, but some very dirty tactics that revolve around intimidation. Shadow notes that he's taken out all of his favorite skaters as soon as he came onto the field and has caused major injuries to his opponents.
  • The Engineer: Reki is a skilled skater, but even better skateboard creator. He is able to create custom boards using his analytical skills and creative usages of simple items.
  • Eyecatch: The eyepatch before and after the commercials features a silly cartoon featuring the characters in their chibi forms.
  • Fiery Redhead: Downplayed. Aside from comedic moments, Reki is a levelheaded, if not passionate person.
  • Gender-Blender Name:
    • Shadow's given name "Hiromi" is more often used for women.
    • Cherry Blossom's given name "Kaoru" is also more often used for women, but it is sometimes used for men.
  • Hidden Depths: Shadow, surprisingly enough, is a florist as a civilian.
  • Hope Spot: After being outclassed, overwhelmed, and downright humiliated by Adam's dance during their heat, Reki regains his spirit and finally manages to pull off the railslide he'd been practicing. But just as things are looking up, Adam pulls off an even more impressive move, swings his board around, and initiates the infamous "Love Hug".
  • Inciting Incident: Langa's first race kicks off the plot when he catches the attention of Adam and the rest of the S community.
  • Instant Expert: Played straight and then subverted. Langa in his first race instantly bests Shadow despite having no experience in skateboarding, though this is justified when it's revealed that he snowboarded during his childhood. The very next day however, he crashes and burns nearly every single time he tries to get on the board, leading to Reki having to teach him all of the basics. Though it's downplayed soon enough when Langa's able to do an ollie after two weeks of learning... only for him to fall on his face again.
  • "It" Is Dehumanizing: Cherry Blossom argues with Joe about this when he reveals that he named his board Carla.
  • Jerkass: Adam is the most predominant example of this in-series, being an egotistical, condescending skater who actively willing to use force against his opponents to make them either bail out or force them to bail out.
  • Jerk with a Heart of Gold:
    • Shadow is initially a Jerkass through and though, being a highly unpleasant player who beats everyone because of his dirty tactics (which are allowed in S), and is not afraid of shoving his wins right in front of their face. However, after he loses to Langa and unwittingly falls into Reki's crowd, he bickers with Reki at first but eventually lets him have his way.
    • Miya is also this, being a condescending skater who loves to tell people that they're worse than him. He starts getting better after losing to Langa and getting some encouragement from Reki.
  • Leitmotif: Beethoven's 5th Symphony in C Minor pops up whenever Adam is really relishing his enjoyment with someone (usually Langa).
  • Let's Get Dangerous!:
    • Whenever Langa starts seeing snow, that's usually a visual cue for him about to do something amazing using a snowboarding skill.
    • Adam usually starts off a race by smoking a cigarette as a way of intimidating his opponent. Then, when he starts getting serious, he goes fast. And when Langa manages to avoid his Signature Attack, Love Hug, his eyes start glowing red!
  • Living Legend: Adam is this to the "S" world, as he is the founder of "S".
  • Lonely at the Top: Miya explains that as he got more and more skilled, the more and more his friends resented him. It got to a point where his friends completely abandoned him, leaving him to believe that he's much better on his own.
  • Loser Friend Puzzles Outsiders: How the "S" community views Reki's friendship with Langa.
  • Ma'am Shock: A rare male version: Reki calls Shadow "old man", to which Shadow retorts that he is only 24 years old.
  • Meaningful Name:
    • Cherry Blossom's family name has the kanji for cherry blossom in it (桜 "sakura")
    • Adam has the kanji for love (愛) in both his given name (Ainosuke) and his S name (the A in "Adam")
  • Mr. Fanservice: In-Universe, Joe is named "the strongest six-pack skater", known for two things: his strength and his abs. His S outfit features him in an open jacket that shows off his marvelously toned upper body. Outside of that, he dresses in a more conservative fashion in his daily life.
  • Not So Different: Langa and Adam, as Adam points out during their heat. They're both thrill seekers, have unique and unpredictable skating styles that challenge all sense and reason, and completely enthrall the "S" community effortlessly.
  • Odd Name Out: Langa's given name uses katakana, while everyone else uses kanji for their given name. This is justified as he is half-Canadian.
  • One Dialogue, Two Conversations: In the preview for episode 5, Langa and Adam seemingly have a conversation where Adam promises to "love" him sweetly and warns him he may use bondage if necessary. Langa gives responses that suggest he's more than open towards the idea — except it turns out that he's completely ignoring Adam and was asking Reki to buy him something to eat.
  • Paper-Thin Disguise: Reki, Langa, and Miya easily figure out Shadow's true identity and are able to track him down at his workplace without anything to tip them off.
  • Phenotype Stereotype: Averted. Langa, being half-Canadian, has light blue hair.
  • Plot-Mandated Friendship Failure: In episode 7, Reki brings an abrupt and vicious end to his friendship with Langa right before the tournament.
  • Police Are Useless: Mentioned in episode 5 that the cops never get involved in the skateboarding fights due to some strings being pulled. The fact that they do show up to crash the one between Langa and Adam catches everyone off guard and leads Adam to suspect something's up.
  • Product Placement: An A&W restaurant is seen in episode 4. This is also Truth in Television, since Okinawa is the only part of Japan where there are A&W restaurants.
  • Real Men Cook: Joe runs a restaurant as head chef in his civilian guise.
  • Real Men Wear Pink: In his daily life, Shadow works in a flower shop and is well-known among his customers for being sweet and adorable, at least on the surface. He also drives a pink car with flower decals for his job.
  • Red Baron: Most of the characters use their "S" names when racing.
    • Hiromi Higa is known as "Shadow", the "Anti-Hero of S."
    • Kaoru Sakurayashiki is known as "Cherry Blossom", the "AI skater."
    • Kojiro Nanjo is known as "Joe", the "strongest six-pack skater."
    • Ainosuke Shindo is known as "Adam", the "Matador of Love".
    • Downplayed and subverted in Reki's case. While he does use his real name, he uses the katakana version of his name (レキ) in S in lieu of the kanji.
    • Also downplayed and subverted in Miya's case. Miya opts to use the romanization of his name instead of the kanji.
    • Many people have come around to calling Langa "Snow" in S, but he doesn't personally use the name.
  • Red Oni, Blue Oni: Personality-wise, Reki is animated, passionate, and outgoing, represented with a red color motif. Cool-headed Langa, on the other hand, is represented with a blue color motif. However, the roles gets reversed in rationale, as Reki presents as the more thoughtful, rational mind while Langa is straightforward and extremely stubborn.
  • Rose-Haired Sweetie: Subverted for Cherry Blossom. He appears to be a nice, gentle person, but he can be exceptionally acerbic whenever someone pushes him the wrong way (usually that person being Joe).
  • Sensitive Guy and Manly Man: Cherry Blossom is depicted as shrewd, clever, and slender, while Joe is muscular.
  • Signature Move: Adam's "Love Hug".
  • Smart People Wear Glasses: Cherry Blossom wears glasses in his daily life and is the CEO of an AI company. He also has quite the encyclopedic knowledge on skating, as well as snowboarding.
  • The Stoic: Tadashi is a straight-laced, emotionless man who consistently has a tired look on his face. Compared to the more lively personalities within the series, he looks downright somber next to them.
  • Villain Respect: Adam arrives with nothing but cold derision for Miya, but expresses clear admiration for Langa's skills and unpredictability.
  • Vitriolic Best Buds: Cherry Blossom and Joe are this both on the race track and in their civilian guises, often bickering about anything and everything. And yet they are still friends.
  • Walking Shirtless Scene: Joe skateboards with an open shirt, owing to his nickname as the "strongest six-pack skater."
  • Wall Pin of Love: Adam does an over-the-top variation of the kabe-don during a sharp turn where he throws Reki against the ground and leans forward, looming over him, which, given his "love" theme and thirst for sadism, is nothing less than suitable for him.
  • Wham Episode:
    • Episode 8 has a double whammy for the audience.
      • Adam's aunts were revealed to be Abusive Parents to him, continually hitting him under the impression that it was all for love. This led him to find skating through Tadashi, who taught him how to skate. Eventually this morphed into his obsession with trying to find his "Eve" in skating, continually injuring opponents in the process. This directly led to Cherry Blossom and Joe breaking off his friendship with him.
      • Tadashi entering Adam's tournament as the new skater "Snake", as an attempt to make Adam quit skating for good if he loses to him. As the episode reveals, he's still impressively skilled at the sport despite years of not skating.
  • Wham Line:
    • Near the end of episode 7, when Reki decides to cut off his friendship with Langa:
    Reki: (towards Langa) You and I... aren't a good match anymore.
    • Adam brushes off Tadashi, as he believes that he can win against him. The latter fires back with this line:
    Tadashi: You may have forgotten, but I was the one that taught you how to skate.
  • Wham Shot: Adam unveiling Snake as Tadashi in Episode 8.
  • The Worf Effect:
    • In the first four episodes, Reki has only raced twice and lost both times, both instances only to demonstrate how powerful his opponents are.
    • Shadow gets beaten by the new skater "Snake" (who's actually Tadashi in disguise) in the eighth episode by a landslide.
  • Younger Than They Look: Reki often calls Shadow "old man" whenever he and his friends need a ride. Shadow continuously has to state that he's 24.
  • You Gotta Have Blue Hair: Many of the main characters have bright hair colors:
    • Langa's hair is a light ice blue.
    • Reki has bright red hair that is spiky.
    • Shadow's hair is orange, and is styled to stick up while he is in his racing persona.
    • Cherry Blossom, befitting of his name, has pink hair.
    • Joe has dark green hair.
    • Adam has bright blue hair that is even spikier than Reki's when he's in his "S" costume.

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