A mysterious island where conquering seven dungeons grants any one wish.

On this island where countless adventurers compete, there was a boy who, due to certain circumstances, remained a Level 1 porter.

He is highly valued by adventurers thanks to his earnest and diligent personality, and a unique ultimate skill bestowed upon him by a goddess.

But settling for being a mere porter is only temporary.

With a usage of his ultimate skill that would astonish even a goddess, he finally breaks through the Level 2 barrier—and charges headlong down the path to becoming the strongest.