One Piece: I Grow Stronger Just by Checking In at Story Islands

Xia Chen unexpectedly transmigrates into the world of One Piece and activates the Story Island Check-In System right at the start.

"What? I get stronger just by checking in at story islands? Isn't that a ticket straight to the top?"

Checking in at his first island, Foosha Village, earns him the Zoan • Mythical Zoan • Human-Human Fruit, Model: Great Sage Equal to Heaven!

Think the Sun God Nika is so impressive?

Don't you know that even if you become a god, you'll still be just one of the hundred thousand heavenly soldiers and generals standing in my way?

He also happens to meet Luffy just as he is preparing to set sail. At Luffy's invitation, he becomes the vice-captain of the Straw Hat Pirates.

Following the main crew, he checks in at story islands everywhere and keeps getting stronger!

This synopsis doesn't do the story justice, so please head over to the main text. The story primarily focuses on the bonds between the protagonist and the members of the Straw Hat Pirates.