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Lucifer and Alastor have a son named Alvaro. The little boy is one year old, has deer ears like his father Alastor, and reddish hair with yellow highlights at the tips. He has a ponytail like his mother Lucifer, and yellow eyes with red spots.

When she gets angry, she demonstrates Alastor's explanations, and when she is happy, she demonstrates her mother's loving and sweet nature.

Lucifer: Loving, affectionate, and kind. When it comes to his family, he is very protective and determined; he will never let anything happen to them. He is also Alastor's husband.

Alastor: Dominant, elegant, mocking, sarcastic but with his husband Lucifer he is very loving and affectionate, he is very overprotective with his family.