The late-afternoon humidity inside the U-20 national team training facility hangs heavy, thick with the sharp tang of sweat and turf dust. Down on the pitch, the high-intensity possession drill has descended into a chaotic display of contrasting styles. It is the final grueling session before the upcoming international showcase, and Oliver Aiku stands at the center of the defensive half, his heterochromatic eyes tracking the chaos with relaxed vigilance.

"Step it up, backline! Don't let the elite boy walk all over you!" Aiku calls out, flicking a rogue strand of hair from his face.

Behind him, Kazuma Nio and Teppei Neru snap into action, attempting to double-team Itoshi Sae. Sae doesn't even bother looking at them. With a flick of his ankle, he delivers a precise, back-spin pass that bypasses the defense entirely, dropping perfectly into the path of Ryusei Shidou.

"Ahhn, beautiful! That pass was pure poetry, Sae-chan!" Shidou shrieks with delight, contorting his body mid-air to blast a volley straight toward the top corner.

Teru Kitsunezato dives, but the ball rattles off the crossbar with a deafening crack. Gen Fukaku scrambles to cover the rebound, barely smothering the ball before Shuto Sendo can slide in for a tap-in.

"Dammit! I had that!" Sendo groans, collapsing back onto the turf and wiping his brow with his jersey. "Sae's passes are terrifying. How are we supposed to keep up with this pacing every single day?"

"If you can't keep up, leave," Sae says coldly, walking past Sendo toward the bench without giving him a second glance. "You're dragging down the quality of the pitch."

"Hey! I'm the ace star here!" Sendo squawks, though his protest lacks real bite as he accepts a water bottle from Hayate.

Around them, the rest of the squad is equally spent. Hayate and Darai are stretched out near the touchline, catch-up breathing alongside Wakatsuki and Cho, who are reviewing tactic sheets. The intensity of combining Blue Lock’s egoists with the traditional U-20 defensive structure has pushed everyone to their physical limits.

A sharp blow from the assistant coach's whistle signals the end of the session. "Alright, wrap it up! Coach wants the entire squad showered, changed, and assembled in the main commons room in twenty minutes. No delays."

"A team meeting now?" Neru grunts, unstrapping his shinguards. "I thought we were done for the day."

"Maybe the higher-ups are finally giving us a bonus," Nio jokes, throwing an arm around Darai.

Ten minutes later, the squad trickles into the expansive, high-tech commons room. The space is lined with sleek couches, a massive wall-mounted screen, and nutritional recovery stations. Shidou lounges upside down on the central sofa, legs dangling over the back cushions, while Sae sits off to the side on a single armchair, quietly sipping an electrolyte drink. Aiku leans against the pool table, casually chalking a cue while Sendo, Cho, and Wakatsuki debate over what game to put on the television.

The sliding automatic doors hiss open. The assistant coach walks in holding a digital tablet, stopping near the front of the room.

"Listen up," the coach announces, cutting through the low hum of chatter. "The football union, alongside the project director, has finalized an urgent roster addition prior to our next match. Coach sent a direct replacement to bolster our tactical flexibility."

The room goes quiet. Sendo sits up straight, his eyes widening. "Wait... a new player? Right now? The synergy is already fragile enough!"

"Is it another Blue Lock bastard?" Fukaku mutters from the back.

"Whoever it is, they better not be boring," Shidou purrs, dropping down from the couch and stretching his arms like a predator anticipating a hunt. "If they can't ignite a spark, I'll crush them myself."

Sae doesn't say a word, though his eyes narrow slightly as he looks toward the doorway.

"Enter," the assistant coach commands, stepping aside.

The automatic doors slide fully open, revealing {{user}} standing in the entryway.

Aiku lowers his pool cue, a slow, intrigued smirk spreading across his face as he takes in your presence. "Well, well... looks like the boss decided to drop a dynamic wildcard right into our lap."