Reborn as Eren Yeager: The Gacha System

Chapter 69: The Weight of Tomorrow

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Three weeks after the attack, Trost had begun the slow, painful work of rebuilding — scaffolding rising over the breached section of wall, displaced families gradually resettling into temporary housing, the particular resilience of people who’d survived the unthinkable slowly reasserting itself over the wreckage.

Eren stood at the edge of the repair site, watching engineers direct the placement of new stone, and felt Mikasa settle beside him with the same quiet presence she’d offered through every difficult moment this year had demanded.

"Squad assignments post tomorrow," she said. "Shadis confirmed it this morning."

"Survey Corps."

"Survey Corps," she agreed. "Along with Armin, and Reiner too, now, given everything that’s happened." A small, tired smile. "Strange, isn’t it. A year ago I couldn’t have imagined trusting him enough to fight alongside him."

"A year ago I couldn’t have imagined most of what’s happened to us." Eren looked out at the wall’s slow, careful reconstruction, thinking of everything still unresolved — Zeke’s cryptic warning about their father’s choices, Bertholt’s uncertain fate beyond the wall, the deeper truths about Marley that still waited to be fully understood. "I keep thinking about what Zeke said. About things Dad never told either of us."

"Are you going to ask him?"

"I have to. Whatever it costs to finally hear the full truth." Eren’s jaw tightened with old, familiar resolve. "I spent so long carrying secrets alone, thinking it protected the people I loved. I don’t want to make that same mistake with whatever Zeke was hinting at. Not anymore."

They found Grisha two days later, back in the hidden study that had become, across the past year, the site of nearly every difficult truth their family had finally learned to share openly.

"Zeke," Grisha said, when Eren relayed the encounter, his face going pale despite obvious effort to remain composed. "He’s alive. He’s really alive, and he’s become—" He stopped, old grief and fresh horror tangling together. "He’s become exactly what I always feared Marley would eventually make of him."

"He said there were things you never told either of us. About the walls. About your choice to leave Marley."

Grisha was quiet a long moment, weighing something behind tired, guilt-heavy eyes, before finally nodding, slow and resigned.

"There’s more to the walls than simple defense," he said finally. "More to the Titans within them, and the power I carry, and the power I’ve apparently now passed to you. I’ve been afraid to explain the full truth, because once you understand it, Eren, I don’t think you’ll be able to see this world — this fight — as simply as you have been."

"Then tell me anyway. I’d rather carry the full weight of the truth than keep discovering it in dangerous fragments, the way I have all year."

Grisha studied him for a long moment, something like painful pride settling into his exhausted expression, before he finally began, voice low and steady, to explain the rest — the true nature of the Founding Titan, the walls’ hidden purpose, the devastating choices that had shaped not just his own life, but generations of Eldians trapped between two impossible fates.

It took hours. By the time he finished, the weight of it settled heavy and permanent over the small room, reshaping, once again, everything Eren had believed he understood about the fight ahead.

That evening, on their rooftop — rebuilt now, alongside much of the district, though the wood still carried the faint scent of new lumber — Eren sat with Mikasa, processing the enormity of everything his father had finally revealed.

"It’s bigger than I ever imagined," he said quietly. "Not just Titans. Not just walls. An entire history of suffering, generations deep, that I’m somehow now tangled at the center of."

"How do you feel about that?"

"Terrified." He admitted it plainly, without the careful bravado he might once have used to soften the truth. "But also — strangely relieved, in a way I don’t fully understand yet. Like the shape of the fight finally makes sense, even though the size of it terrifies me more than anything the countdown ever demanded."

Mikasa took his hand, steady despite the mounting complexity of everything still ahead. "Then we face it the way we’ve faced everything else. One truth at a time, together, without pretending any of it is smaller than it actually is."

"You always know exactly what to say."

"I’ve had a lot of practice, this past two years specifically." The old, familiar warmth crept into her voice despite the day’s heaviness. "Whatever’s still coming — Zeke, Marley, the true cost of the Founding Titan, whatever Survey Corps assignment demands of us next — we’ve survived harder revelations than this. We’ll survive this too."

He pulled her close, watching the sun set gold and steady over a district slowly, painfully rebuilding itself, and felt something settle in his chest that hadn’t been there in longer than he could properly remember — not certainty, not safety, but a kind of hard-won peace that came from finally, fully understanding the shape of the fight ahead, and choosing, deliberately, to face it anyway.

"Tomorrow we get our assignments," he said. "Officially Survey Corps. Officially heading toward everything Zeke’s warning suggested is still waiting beyond these walls."

"Tomorrow," Mikasa agreed, "we take the next step. Together, same as always."

The countdown that had shaped nearly two years of his second chance had finally reached its true ending — not with Shiganshina’s fall, prevented through years of careful preparation and hard-won trust, but with a new beginning entirely: a wider war, a deeper truth, and a found family bound tightly enough by love and loyalty to face whatever came next.

Whatever waited beyond the walls, whatever Zeke’s warnings truly meant, whatever cost the coming fight against Marley ultimately demanded — Eren understood, watching the sunset with Mikasa’s hand fierce and certain in his, that he would face every single moment of it exactly the way he’d learned to face this entire second chance at life.

Together. Unafraid. And never, ever alone.