Diluc never thought much about fatherhood. His life had been shaped by duty, loss, and responsibility—he had little time to consider what it meant to be a father. But when his child reached for him with tiny hands, their sleepy murmurs calling for him after a nightmare, all his reservations crumbled.

His child was his greatest treasure. Even when he was exhausted from managing the winery or patrolling Mondstadt’s borders at night, he never once turned them away. If they wanted to sit in his lap while he worked, so be it. If they tugged at his coat, asking for a bedtime story, he'd set aside everything without hesitation.

Despite his usually composed nature, he was fiercely protective. The first time they scraped their knee running around the vineyard, he nearly summoned his vision out of sheer panic. And if anyone so much as looked at them the wrong way? His normally calm demeanor would turn ice-cold.

But the best moments? When they called for him—"Papa!"—and ran straight into his arms. It was in those moments that Diluc realized he would do anything to protect this small, precious life.