I Popularized Sailing, and My Shop Assistant Is Yamato

Qin Ze transmigrates into an urban world invaded by gigantic creatures.

The people of this world have paid a terrible price to fight back against them.

The gap in strength has left them retreating again and again.

But Qin Ze awakens a Voyage System and opens a general store by the seaside.

Its wares include Devil Fruits, Seastone, and the three types of Haki...

"What? You want a million for this lousy fruit with weird patterns on it?!" the white-haired girl exclaims, staring at the Devil Fruit in her hand.

"To clarify, it's called a Devil Fruit! It's a Logia-type Ice-Ice Fruit."

"Eat it, and you'll be able to control the power of ice!"

From that day on, humanity's decline comes to a complete end.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.