The Training Arc

Lore & Background

In the world of Eyeshield 21, American football is not the mainstream sport it is in the United States; in the Japanese high-school setting it occupies a niche, almost underground space. The Deimon Devil Bats exist at the margins of the school's athletic hierarchy, tolerated more than celebrated. Their locker room is a place where delinquents, bookish underachievers, and social pariahs congregate not because they share a love of the game initially, but because nobody else will have them.

The Training Arc is where that accidental congregation is forged into something deliberate. Through repetitive, punishing drills — route running, blocking footwork, tackling form, and the specific set-piece plays the team will rely on — each member slowly discovers a role that fits their physicality and temperament. Sena's role is the simplest and most radical: run, and never stop running. The arc's emotional core is the transition from 'I am here because I have nowhere else to go' to 'I am here because this is what I do.'

The coaching philosophy embedded in the arc emphasizes collective trust over individual brilliance. Every pass, every block, every handoff is a contract between two people who, weeks earlier, could not have predicted they would ever rely on each other in a physical contest. That trust, once formed, becomes the team's true weapon — more durable than any single play.

In Their Own Story

The gymnasium smelled of rubber and old sweat. Sena stood at the end of a twenty-yard sprint lane, his chest heaving, his knees shaking so badly he could barely keep his balance. Around him, the other Devil Bats lay sprawled on the mat, groaning, laughing through the pain, stealing glances at him with that particular mixture of disbelief and pride that had become their default expression.

'Again,' someone called from the sideline. Not a question. Not a suggestion. A fact, delivered with the flat certainty of gravity.

Sena's legs screamed. His lungs burned. Every rational nerve in his small frame told him to sit down, to fold, to become invisible the way he had been invisible his entire life. But then he felt the weight of their eyes on him — not the cruel, expectant gaze of the bullies who had made his days before this, but something warmer. Something that said *we need you to be fast, and we will be here when you stop.*

He turned. He set his feet. He ran.

And for the first time, running did not feel like fleeing. It felt like arriving.

Reader's Guide

Okay so picture this: a group of kids who were basically written off by their entire school get dragged into a gym and told to learn a sport most of them have never properly touched. That's the setup. Sena's a scrawny, anxious kid who runs like the wind literally cannot catch him, and the team's whole identity basically orbits around that one absurd fact. The early drills are almost comedic in their futility — everyone is clumsy, everyone is out of shape, the blocking looks like a mosh pit, and the passing is a tragedy. OH NO moments: you watch them try a basic handoff and the ball goes sailing into the rafters while the whole team just stares. You feel for them.

Then the slow shift happens. Someone locks in a route. Someone finally wraps a tackle instead of just flailing. The quarterback and the receivers start reading each other without calling. It's not a montage — it's earned, frame by frame, and you can feel the individual egos softening into something collective. OH YES moment: the first time a full play works cleanly in practice and the whole gym erupts, and Sena just stands there blinking like he doesn't quite believe he's part of this.

By the end of the arc, the team has a rhythm. They know who they are. They know what they're bad at. And that 'oh no' feeling from the first week is replaced by a quiet, dangerous confidence — the kind that makes you realize these outcasts are about to walk into a tournament and make a very loud statement.

Did You Know?

• Eyeshield 21's art is by Yusuke Murata, the same artist later celebrated for his work on One Punch Man, giving the manga's action sequences a kinetic, almost painterly quality even in its quieter training scenes.
• The sport depicted is full-contact American football played in a Japanese high-school context, a setting that required the creators to build an entire rules-and-culture framework that feels organic to the characters rath
• Sena's defining trait — his seemingly limitless top speed — is established during the training arc and becomes the single most referenced element of the team's identity throughout the entire series.
• The Devil Bats roster is deliberately assembled from social outcasts (delinquents, underachievers, the overlooked), making the team's success a narrative about collective belonging rather than individual talent.