Even Though I Was Just a Mob Character, I Ended up Becoming the Guardian of the Heir to the Marquis' Family

I was supposed to have died in an accident… but when I opened my eyes, I found myself inside the pages of my favorite novel! And the worst part? I wasn’t reborn as the heroine or even the villainess… but as a completely insignificant side character.
According to the original story, the noble couple I work for will soon disappear, and all the servants will be dismissed afterward. I knew exactly how it was going to play out, so I told myself: “I’ll just live quietly, freely, and comfortably in my own way.”
But things didn’t go as planned…
Suddenly, and completely against the original plot, I find myself in charge of the marquess’s children, who were left behind after the tragic accident. I’ve become their guardian, even though I was never meant to play this role!
Even when I tried to walk away, I couldn’t ignore their innocent eyes and their need for comfort… So I chose to take on the responsibility, leading them on a journey filled with surprises and challenges.