All I would have had to do was reveal who I am, and Shido would have been ruined. Having an illegitimate child is the sort of scandal that destroys a person's life where I'm from. Publicizing his crimes wouldn't have done him many favors either, although enough of the police force is in his pocket that I doubt he would've been arrested that easily.

...There's nobody to blame for myself for why it kept going on, though. I could have revealed everything right away, but I wanted to make him see me as useful first. To wait until he acknowledged me, the child he abandoned before I was even born, as essential to him, and then destroy him at the very moment he thought he'd won. I wanted him to feel the same level of humiliation and despair he put my mother through.

[The past tense is very deliberate, as his tone doesn't reflect any of the hatred, resentment, or twisted attachment that would lead to that train of thought.]