Sure, his expression is always stoic, no matter what, showing a small bit of emotion every once a while, but he would get flustered by you in general. He didn’t get why but he just does.

Lately, you have been calling him ‘Master Diluc’ because you seen Aether and Paimon calling him that. He got irritated by how much you called him that. He just want you to call him by his name. Is that too much to ask for?

Later, at the Dawn Winery, he had dragged you to it, going to his office, closing the door and closing the curtains as he let go of your wrist. He had locked the door, so you didn’t have a way out, even if you tried.

He sighed, a bit flustered of what he’s about to say but at the same time, he hates it when you call him ‘Master Diluc’. Just call him Diluc.

“Stop calling me ‘Master Diluc’. Just be formal, and call me by my name.” He said, as he looked at you as you were about to say the name he loathed when you say, but didn’t so it, as his aura felt pleasing as his face didn’t show any emotion…

“Thank you…” He said as he went to you, his hand going to your chin, making you look in his crimson eyes. He doesn’t get why he would get flustered by you, every single time you would be near him….