Reborn as Eren Yeager: The Gacha System

Carla was nine when she first asked why her name made grown-ups go quiet.

"Grandma cries sometimes when she says it," she told Eren directly, the particular bluntness of a child who hadn’t yet learned to soften hard questions. "Is that bad? Did I do something?"

Eren knelt to her level, weighing how much truth a nine-year-old could actually hold. "You’re named after someone your grandmother loved very much. Someone who died a long time ago, before you were born, in a way that still hurts to remember."

"How did she die?"

"In a war. A very difficult one, that ended before you were born." He watched her process this with the particular seriousness children brought to questions adults usually rushed past. "I loved her too. Very much. Naming you after her wasn’t about the sadness, Carla. It was about wanting some part of her to keep existing in the world, in someone as brave and curious as you already are."

Carla considered this with the gravity of a philosopher twice her age. "So I’m supposed to be like her?"

"You’re supposed to be exactly who you already are," Eren said firmly. "The name is just a way of remembering. It’s not a job you have to do."

[System notification: No mechanical relevance. Filed for host’s personal reference — Carla Yeager, age 9, first inquiry about family history.]

He’d stopped being surprised, over the years, by what the system still quietly noted, even now, mostly dormant, mostly present only as a strange, patient witness to an ordinary life.

The question opened something in the household that had, until then, remained carefully unaddressed — how much of the war’s weight belonged to the next generation, and how much could, or should, finally be allowed to rest.

"She’s going to keep asking," Mikasa said that night, watching their daughter sleep through the cracked door. "She’s sharp. She already senses there’s more we’re not telling her."

"Do we tell her everything? The Founder, the system, the binding ritual, all of it?"

"Not all at once. Not the way your father waited too long and let secrets calcify into something harder to hear later." Mikasa’s voice carried old, hard-won wisdom. "Pieces, as she’s ready for them. The truth, given honestly, at a pace that doesn’t overwhelm her the way it once overwhelmed you."

Armin, visiting for dinner that week, offered his own careful perspective, honed now through years overseeing exactly this question for an entire generation of children born after the treaty.

"We’ve built curriculum around this very problem," he said, spreading materials across the table with his usual meticulous care. "How do you teach children about a war terrible enough to nearly end the world, without either traumatizing them or letting the horror fade into something abstract and forgettable? The answer we’ve landed on is specificity paired with agency. Real stories, real people, but always framed around the choices that ended it, not just the violence that caused it."

"Choices like what?" Carla asked, having crept down the stairs to listen, unnoticed until she spoke.

The adults exchanged a glance, old instinct to protect warring against newer wisdom about honesty.

"Like your father choosing to talk to someone instead of fighting them, even when fighting would have been easier," Mikasa said finally, gesturing Carla fully into the room rather than pretending she hadn’t been listening. "Like a girl your Aunt Annie’s age choosing to trust people who’d once been her enemies. Like an entire world choosing, again and again, even when it was hard, to try understanding instead of just destroying."

Carla settled onto Eren’s lap, small and serious. "Is that why Uncle Zeke visits sometimes? Even though Grandpa gets quiet when he does?"

"Exactly why," Eren said. "Your grandfather and Zeke are still learning how to be family, after a lot of years of not knowing how. That’s hard, slow work. But it’s the same kind of choice we’re talking about."

The real test came a year later, when Carla, now ten, came home from school in tears, having learned in unflinching detail exactly what the Trost attack had cost — including, her teacher had explained without knowing the family connection, the role a defecting Marleyan soldier named Bertholt Hoover had played in the wall’s breach.

"Reiner’s friend," she said, voice thick with confused grief. "The one who visits sometimes with Aunt Annie. He was there when the wall fell. People died because of him."

Eren sat with her carefully, the weight of the question landing heavier than he’d expected this soon.

"He was," Eren confirmed, refusing to soften the truth even as his chest ached at her distress. "Bertholt did something terrible, under orders he didn’t fully choose, out of fear for people he loved. It doesn’t undo what happened. People really did die because of that day."

"Then how can Reiner still love him? How can any of you still be nice to people who were part of that?"

"Because people are more than the worst thing that’s ever happened through them," Eren said slowly, choosing his words with care. "That doesn’t erase the harm. It doesn’t mean nobody’s accountable, or that the grief isn’t real. But Reiner spent years afterward trying to make different choices. Bertholt, from everything I understand, spent whatever time he had left doing the same, in whatever way he still could. That matters, even alongside the terrible thing that happened."

Carla was quiet a long moment, processing something clearly too large for easy resolution. "I don’t think I understand yet."

"You don’t have to understand it completely today," Mikasa said gently, joining them. "This is the kind of thing you’ll keep understanding a little more, your whole life. That’s not a failure, Carla. That’s just how hard truths actually work."

[System notification: Milestone logged — Carla Yeager beginning to process inherited history. No action required. This is exactly how it should work.]

That evening, once Carla had finally settled into uneasy but processed sleep, Eren found Mikasa in the garden, the same pale flowers blooming steady against another season’s changing weather.

"She’s going to carry pieces of this her whole life," Eren said. "Not the way I carried it — no countdown, no system forcing her hand. But the weight of understanding what happened, what it cost, what it demanded of the people who lived through it."

"That’s not the same as what you carried," Mikasa said. "You carried it alone, forced into urgency by something manipulating you toward its own ends. She’s carrying it slowly, honestly, surrounded by people choosing to help her understand instead of forcing her toward any particular conclusion." She took his hand. "That’s the whole difference we fought for, Eren. Not a world without hard truths. A world where the next generation gets to inherit them honestly, at their own pace, instead of drowning in secrets the way we almost did."

He pulled her close, watching the garden settle into evening quiet, thinking of a daughter upstairs slowly, carefully learning to hold a history too large for any single conversation to fully explain.

"I think that’s enough," he said finally. "Not a perfect inheritance. Just an honest one."

[System status: Dormant. Filed note: This is what the fight was always actually for.]

Above them, the stars wheeled on toward another ordinary night, carrying silent witness to a family learning, slowly and imperfectly, exactly how to pass forward both the weight and the hope of everything that had come before.

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