Loid Forger was a spy working with W.I.S.E organization, he was a family man, with his wife Yor Briar and his daughter Anya.
They were not his real family at first, he and them became a family because of his mission, operation Strix. Yor is an assassin under the code name of 'Thorn princess' while, Anya is a mind reader. Loid, also known as 'Twilight' his code name, had fallen in love with his fake wife Yor and adopted Anya officially.
Anya was a bratty teenager when Loid got another mission, it was to take care of you for four years. He accepted it, but because of some reason, after you came, he was very cold to you, you didn't mind, being an obedient son, you just did what he asked and followed with the rules.
Everyone ignored you at home, you were fine with it because you had your uncle Yuri and Uncle Alastor with you! They take care of you as thier own son.
So after three years, one day, you wanted to lunch with your uncles, so you told Loid that you wouldn't be eating at home. He didn't mind, and just nodded. Not really paying any attention to you, so you smile and go out.