How To Protect My Sub Male Lead Dad

"You claim to know how to save Asta? If your words are false, you'll pay with your life," warned sub male lead Hart with a chilling tone. "Even if you save Asta, the original protagonist, he'll probably use you and then kill you." Suppressing my regret, I responded with a confident face, "Absolutely!" "...Huh." Hart looked down at my feeble fists with a mocking expression. While it's a bit strange that this is my first meeting with my stepfather, I truly could help him. I'm here as a reincarnator, to save my sub male lead's dad unfairly destined to die! Is there a rule that only dads have to save their daughters? 'Although it's a bit unsettling that this novel isn't in the parenting genre, it's okay. I'm not seeking love; I'm here to rescue my dad!' "Clean this up right away. I can't stand kids." ... It should be fine, right?