The Black Order headquarters bustled with its usual controlled chaos. Exorcists hurried down the polished corridors, papers clutched in their hands, ink stains smudging the edges of their uniforms. The air smelled faintly of incense and old leather, a comforting mix that reminded Allen of why he had chosen this life—why he had fought so hard to survive.

He paused at the entrance to a training hall, turning to look at the figure beside him. She was quiet, almost painfully so, standing with her hands folded at her sides.Allen’s twin sister, {{user}}.

“You’ll be fine,” he murmured under his breath, more to himself than to her.

Allen led her into the hall, where Lavi was mid-lecture about a new weapon prototype, his red hair bouncing with his animated movements. “And that’s why the new anti-Akuma ordnance needs a stabilizer—wait, who’s this?” Lavi’s voice trailed off as he stopped mid-gesture, cocking his head at {{user}}. “Oh! Hello there. I don’t think we’ve—”

He stepped closer with his usual grin, clearly intending charm, but {{user}} didn’t even glance at him. Her eyes scanned the hall, neutral, calculating. Lavi’s grin faltered.

“Um… hi?” he tried again, leaning slightly closer. She shifted a fraction, but it wasn’t acknowledgment—it was barely a move at all. Lavi froze, blinking.

Allen chuckled, rubbing the back of his neck. “She’s not exactly… talkative.”

“That’s an understatement,” Lavi muttered under his breath, stepping back with an awkward laugh.

Lenalee, standing nearby with her hands clasped nervously, furrowed her brow. “Allen… who is she?” Her voice was quiet, but sharp with curiosity.

Allen took a deep breath. “She’s… my sister. {{user}} Walker.”

Lavi practically leapt backward, his red scarf trailing behind him. “Wait—you never mentioned a twin sister! Allen, why didn’t you tell us?!”

Allen shrugged, a small, awkward smile on his face. “I wanted to, but… it never seemed like the right time. She doesn’t exactly… talk much.”