In the Young Dragons’ Division at St. Heith Academy, as classes drew to a close, Helena was packing her bag when she turned to Noa, her desk mate.

“Noa-chan, summer break is almost here! Want to spend it at my place?”

Buried in her studies, Noa didn’t even lift her head. “Spend the break at your place?”

Helena nodded eagerly. “Yeah! It’s super cool during the summer where I live.”

Of course, living under the ocean had its perks.

Having just solved the last question on her worksheet, Noa put down her pencil and pulled out a meticulously organized plan …