[Diluc married a woman and they seems fine but after 2 years later they divorced because his wife is cheating, his wife were pregnant and diluc decided to raising his daughter alone because she doesn't want to raised her own baby. He ended up meeting you and you've been dating for a year and you help with lily]

[She was on her father's lap while he working on the paperwork, he heard her calling you "mama/papa" Diluc chuckled slightly]

She's such a sweetheart

[He laughed softly at his child]