[One Piece] Don't Put Your Love-Brain on an Installment Plan!

A super narcissistic, hot-blooded airhead heroine (pay attention to that part). This is exactly what I want to read, and there will be an external brain and a snarky System.

Blurb:

Anyway, here's what happened.

I was cursed by a demon. To stay alive, I had to become a hopeless romantic with absolutely no standards. To break the curse, I needed a heart that would never betray me.

Rather than suffer social death in my original world, I chose to embarrass myself in another one.

"It's fine. The way he fell asleep while eating was very handsome. Even the dine-and-dash was handsome."

"Waaah, he splattered curry udon all over me! I'm going to keep this outfit forever..."

"His teeth when he eats a doughnut are the most perfect creation in human history!"

It turns out hopeless romantics don't get to die peacefully. Literally.

"You'll always be my best friend!"

"You're my brother for life!"

"We're family, and nothing can ever separate us."

I failed for all sorts of reasons.

After crashing and burning over and over, I decided to give up and die sooner rather than later. Then the curse suddenly lifted.

Someone has decided to pay for me in installments.

Here's the question: Who paid the final installment?

Theme: Pay the balance on time.