Joe is one of the strongest and more muscular skaters in "S". Having been into the sport since his teenage years, it can be inferred that he's spent much time honing his skills, even into his adult life. He is well-known in "S" as the 'Six-Pack Skater' due to the unusual, strength-orientated style he uses when skating. Joe has a "papa bear" mentality and appears as a father figure to the younger boys, offering advice and noticing when things are off about them. He is very open-minded and kind towards the younger boys trying to help them whenever he can. He helps Reki overcome his doubt and often comes to find him when he's worried that he's doing something reckless. He speaks to Reki when he's down, trying to help him with his self-worth. He notices the small things in the younger boy's behavior and his playboy persona sheds as he shows his support.

Kaoru is a calm intellectual who is well-known even outside of "S" as a famous and successful AI calligrapher. He's been shown to treat clients and strangers with polite respect, but he is often prickly towards those closest to him, most prominently his fellow "S" member and childhood friend Kojiro Nanjo. Kaoru often loses composure when dealing with Kojiro, perhaps due to their contrasting personalities, and the two usually end up bickering and calling each other names whenever they disagree on something. Kaoru is also notably competitive when skateboarding, always wanting to beat Kojiro during races and beefs and even getting Carla to record his time during the tournament preliminaries to see how it measures up to Adam's. However, despite his prickly, cold exterior, he does truly trust and care for those whom he considers his friends. Joe seems to be a playboy who likes to charm and have fun with many women. Despite his aura of hostility towards Cherry Blossom, they are good friends who have the utmost trust in each other and their abilities. He is shown to deeply care for Kaoru, being the person Kaoru sneaks out of the hospital for after he's injured and the one who carried Kaoru when he passed out after Adam's attack. Joe & Kaoru have been shown to be close, using each other's first names alongside the childhood friends aspect.

In the evening, Hiromi Higa participates in "S" as Lord Shadow, the self-proclaimed anti-hero of the "S" races. In contrast to his florist persona, he is arrogant and rude under the guise of Shadow, aiming to entertain the crowd with his tricks and he is shown thriving on the attention of onlookers.

Langa generally wears a neutral or sometimes even stoic expression and when speaking, he tends to use as few words as necessary. As early as his introduction to his classmates, his teacher needs to urge Langa to tell the class more about himself other than just his name, to which Langa adds that he's from Canada, much to the class' amusement. He is calm and laid back about most things, but when it comes to snowboarding and/or learning to skateboard, he's greatly determined and frequently puts his life at risk. Ignoring self-preservation for the act of fun with Reki Kyan. He can be an air-headed and easily distracted. He is very self-assured when he is in his element and is a very quick learner. This can be seen when he easily masters riding a skateboard, using his skills from the fifteen years he spent snowboarding. He was able to make quick adjustments such as quickly learning how to turn on a skateboard, which is different than turning on a snowboard due to the trucks and wheels on the skateboard.

Miya was a carefree boy when he was younger, but he has grown into someone who can seem very cocky at times. However, this is likely part of a persona he adopted following the events shown in the flashback after his beef with Langa Hasegawa. He was interested in skating from a young age and would often skate with his friends. During this time, Miya had fun skateboarding with others. He mastered the skills of skateboarding quickly, such as mastering the ollie in only two weeks. His natural ability for skateboarding bred resentment in his friend group, and the better Miya became and the more awards he won, the more quickly his friend group diminished. It was around this time that of his friends, Takashi, proclaimed that heroes can't team up with slimes, which was what led Miya to his world view that he is the hero and everyone else around him are the slimes. Miya isn’t much of a fan of letting others see his weaknesses. Because of Miya's experience with his friend group abandoning him the more skilled he became at skateboarding, he is most likely afraid of letting someone get close to him again fearing they will leave. Despite this, he seems to take Reki's promise to not abandon him at face value and he has maintained a friendship with him, Langa and Shadow.