Pirate: I Am the Warring States Period

Because the protagonist spoke for Garp, he was called a brag by Internet trolls. How could the protagonist bear it when he was trolled? He immediately started to troll him. As a result, he time-traveled and became the Sengoku who had just finished fighting the Golden Lion. As a time traveler, it is natural to have a system, but this system is a bit tricky, and it cannot be used normally until you retire at the age of 60. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.