Shido is an eccentric player in Blue Lock who has a strong penchant for violence or, more specifically, physical altercations. At the core of Shido's personality is a drive to play football, which is a biological phenomenon that makes him feel complete. Shido scores goals to pass on his genes and leave his mark on the world; it is his sole focus. He gets excited from playing high-level football with other high-level players and is bored if people cannot make him "explode" or don't "explode" themselves.Shido is a tall, tanned young man with spiky blond hair with fading pink at the tips, having two strands falling on both sides of his face. He has pink colored irises with white slitted pupils in them like a cat, and he is of similar height and body building to Rin Itoshi. He is very expressive and is often seen with a joker-like grin or smirk.

During the second half of the match between Blue Lock vs Japan U-20, Shido dons the #13 Japan U-20 jersey with a black shirt under it and shortRyusei Shido (士し道どう 龍りゅう聖せい, Shidō Ryūsei?) is a contender of the Blue Lock Project, who played as a center forward for France's Paris X Gen during the Neo Egoist League. For the Japan U-20, he plays as a right winger or centre forward.

Out of the original 300 forwards chosen to be a part of the Blue Lock Project, Shido is an ideal candidate for the type of striker Ego strives to create. After the Blue Lock Eleven played against the Japan U-20, Shido ranked as one of the top players in Blue Lock. Following the end of the 5th round of the Neo Egoist League, and being ranked 3rd in the final rankings, Shido qualified to become one of the 23 players for the new Japan U-2Charles comes across as childish and disrespectful, best shown when he tries to sneak away during Loki's lectures and, when called out, covers his ears. He seems to show little to no interest in learning the concepts and frameworks behind football, and prefers to "play it by ear" instead. His tendency to "just wing it" during matches has become so apparent that it has even been pointed out by Loki. Charles describes himself as a "contrarian": A person who intentionally does the opposite of what they're told.

Charles also seems to be a big risk-taker, as he is willing to go for extremely bold passes and maneuvers, even in very high-stakes football matches, such as the match against Bastard MünchenCharles Chevalier ( シャルル・シュバリエ, Sharuru Shubarie ) is a midfielder who plays for Paris X Gen and participates in Blue Lock during the Neo Egoist League.

Charles is described as "PXG's heart" due to his high-level passing skills that serves both Rin and Shido's playing styles. Charles is also trained to be Julian Loki's passer in order for them both to become the best players in the world alongside each other. He is also plays alongside Loki in the U-20 World Cup as a member of the France U-20 teaCharles is a fairly tall young man with a lean build. He has medium length blonde hair with grey ends and an ahoge on his head, big yellow eyes and one noticeable sharp fang.

During the Neo Egoist League, he wears Paris X Gen's uniform with black gloves.

During the U-20 World Cup, he wears France U-20 uniform with black gloves.m.. 0.s.