The male protagonist is a pirate fan. He stayed up late at home to play pirates. He accidentally traveled through time in his sleep. When he woke up, he arrived at the final island of Rafdru, where he discovered the secret of Roger, the Pirate King, and obtained the Onepiece. When the pirates were all crazy about Onepiece, the male protagonist said to the somewhat confused Luffy, I'm sorry, I am Onepiece!
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.