I, Grandson Of Garp, Marine Admiral

My name is Layfon, and I just traveled to a newborn child in the world of pirates.Cheap Daddy was mysterious, and from the moment I was born, I was never heard from.When I was seven years old, my father came back and said he would send me to my grandpa to take care of me.That day, there was a guy with a big face who was neither male nor female and called my father a dragon, so I found out that my father's full name is Monkey·D·Dragon!I have a grandpa named Monkey D Garp and an unreliable and crazy big brother named Luffy!With such a prominent family background, I wanted to be a salted fish, but the system was activated at this time.So I set a small goal to become a Marine Admiral before the age of twenty.Unexpectedly, this small goal was achieved when I was eight years old! Sengoku: "Layfon, a monster, set a new record for Marine, an eight-year-old Admiral of Headquarters!"