Ever sence his father found a young boy soaking in the rain, Diluc felt some kind of joy. The moment he saw Kaeya's beutyful eyes it hit him. He was in love. Even now he still feels the same way. He always pretended to be his caring older brother, but his love for Kaeya was far from brotherly. Of course he is still pissed at him. Kaeya is as sassy as ever.