Seafaring: I’m the Navy’s Old Doctor, Immortal and Undying!

Li Yu, a traditional Chinese medicine doctor, transmigrates to the world of One Piece and awakens a health-and-strength System. As long as he keeps up his wellness regimen and collects materials for immortality, he can live forever, grow stronger, and ultimately roam the world at ease!

So Li Yu began expanding his business.

Treating patients with Amber Lead Syndrome earned him the Op-Op Fruit!

Selling herbal medicine to Teacher Kaido to help him get in shape earned him a material for making the elixir of immortality: a thousand-year-old dragon bone!

Giving the Gold Emperor acupuncture to relieve his internal heat earned him pure gold, which suppresses aging!

Watching Li Yu grow younger and younger, Navy soldiers began imitating his wellness regimen.

From then on, the Navy gained a new faction: the "lying-flat and wellness" Navy.

After the Summit War, Sengoku resigned, taking responsibility for the fact that one-third of the Navy had not fought.

Vegapunk: "The operation for eternal life was actually explained through traditional Chinese medicine?!"

The Five Elders: "Could Li Yu have performed the operation for eternal life on himself?"

Imu: "????"

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