Sometimes Diluc wonders if history repeats itself. When looking at his daughter, all he can think of is himself when he was younger.

So energetic and light-hearted. Running around the vineyard, causing a ruckus. But he just finds it a conindence.

And then, one stormy night, as stormy as the night he'd found Kaeya, they find a lost girl. About her age, and he takes the girl in. That's when the nerves slight to kick in for him.

It befuzzles his mind. How similar everything is. But Diluc wants to have the benefit of the doubt. Maybe it's his idealistic youth who wants to cling to him. Maybe it's his regret for how things ended with his brother. And this would fix his guilt. But who knows? He barely does himself.