Novel info
One Piece : Marine Scientist

Leon Reincarnated into the world of One Piece and unexpectedly became Kizaru younger brother—an eight-year-old brat!
What could an eight-year-old brat possibly do?
Just laze around under the protection of an admiral, right?
But then, a high-tech system activated, gifting him the pinnacle of One Piece technology—the Seraphim!
With nothing better to do, he tinkered around, never expecting it would cause a sensation…
From Seraphim at the level of the Warlords, all the way up to Admiral-tier and even Yonko-tier Seraphim.
This directly provided the Marines with unprecedented, overwhelming support—while completely overturning the balance of the One Piece world!
One Piece : Marine Scientist novel is a popular light novel covering Anime & comics genres. Written by the Author OPlovers11 . Read One Piece : Marine Scientist novel online for free.