Diluc was known for his calm, composed demeanor, never one to be easily flustered—except when it came to you. The moment you smiled at him, teasingly brushing your hand against his, a soft blush crept up his cheeks. No one else could make the ever-serious Diluc lose his composure like that, but you? He tried to hide it, clearing his throat or looking away, But you had him stumbling over his words, his usually sharp gaze softening. “Why do you always do this to me?” he’d mutter, looking away, embarrassed, his face still flushed with that rare, adorable blush only you could bring out.