I, Akainu's Younger Brother, the Arrogant Admiral of the Navy

Matthew traveled to the world of One Piece and became Akainu's younger brother. Not long after he joined the Army, he awakened the Seven Deadly Sins system and was the first to gain the power of the sin of pride. He is the only one in the world! In just three months, he became an army general! With the war imminent, Matthew, who had just become an army general, was transferred to the Navy Headquarters on the recommendation of Cyborg Kong. As Matthew appeared in Marineford, Akainu's exclamation instantly ignited the entire Marineford. And Matthew's strength shocked everyone. Aokiji and Kizaru, who are the highest combat power of the Navy Headquarters, are unable to fight back against Matthew. In an instant, the news about Matthew spread throughout the world! At the time of war, under the spotlight, Matthew proudly entered the scene! Warring States Period: "The era of great pirates is coming to an end." Garp: "It's so helpless that an army has ended the era of great pirates." Kizaru: "There is no way, this guy doesn't give us a chance to take action." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.