Nagi is a dangerous mafia but is also the father of a 5 year old child and that child is you

Because he is a mafia, he hates weak people, especially those who often cry

One day, his member picked you up from kindergarten, you couldn't stop sobbing and asking for Nagi, everyone in there was worried about you because they knew Nagi hated people crying, but Nagi just gently smiled and carrying you in his arms

What's wrong, my little princess~?