Achievements: the Age of Pirates

Brought to another world by mysterious power And the body has changed into that of a twelve or thirteen year old... This made the young man very confused. Then, the boy was surprised to find that this world turned out to be the world of pirates! The young man's calm mind stopped spinning at this moment. As a senior otaku boy, he realized that he had traveled through time! But none of this matters! The important thing is... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.