The guardian baby of the Grand Duke’s residence!

Synopsis 

I am the guardian of a family blessed by the Sea God—and the Sea God’s daughter herself… or so I was.
Tricked by a villain, I died an unjust death.

When I opened my eyes again, I was four years old.

This time, I did everything I could to be adopted by the Grand Duke.
Boing!
For example, I showed him something very small—something truly insignificant—like a single tiny drop of water.

“……Pfft.”
“I’m sorry. I’ll work harder. Please wait five years—no, ten years!”

After many twists and turns, I ended up staying at the Grand Duke’s residence. But growing up quickly like a proper child for the sake of awakening my powers was a harsh and exhausting trial.

Still, if I wanted revenge on the villain, to help the Grand Ducal family, and to reclaim my honor, I had no choice but to endure.

“This time, I’ll protect everything!”

Will Ariel be able to protect the people she holds dear—and finally find happiness?