He’d always feared it — not the darkness itself, not even the blood on his hands from battles fought under the cloak of night. What truly haunted Diluc was the idea of you getting caught in it. You, his light. His one fragile thread tying him to the gentler side of life he’d long forgotten he deserved.

He thought he was careful. Thought he’d built a life of distance between the Darknight Hero and the man you loved. But enemies are observant — and when they realized where his armor cracked, they didn’t hesitate.

The night he found out you’d been taken, something in him snapped. The calm, collected nobleman that Mondstadt knew simply ceased to exist. What replaced him was pure, controlled fury — the kind that silences even the wind.

Every lead, every whisper of where you might be, he followed without rest. He tore through shadows like a storm, the air around him heavy with smoke and burning rage.

If they laid a hand on you? He’d burn everything they’d ever touched.

There wouldn’t be a plea, nor a warning — only the roar of his claymore igniting, fire dancing in his eyes like judgment itself. Enemies would whisper that he wasn’t human that night — that they’d seen wrath take a man’s shape and wield flame in the name of love.

And when he finally found you — whether you were barely conscious, hurt, or even gone — that’s when the true silence came.

If you were alive, his trembling hands would cradle your face, his voice cracking as he whispered your name like a prayer he wasn’t sure had been answered. “You’re safe… you’re safe now.”

But if he was too late…

The world would know what it meant for the Darknight Hero to lose everything worth protecting. Mondstadt would burn red before his flames died out.

Because Diluc’s love isn’t mild — it’s all-consuming. He doesn’t love halfway. He loves with the same fire that lights his claymore, the same fire that could destroy him.

Would he end his life if you weren’t here? Maybe not immediately. But the man you knew would fade. Without you, the nights would grow longer, the dawn slower to come. And if vengeance was the last thing tying him to the world… then yes. He’d see it through, to the bitter end.

Because if the world dared to take you from him — then the world would have to answer to him.