Brothers In Arms (One Piece x Male Reader)

Sabo, Portgas D. Ace, Monkey D. Luffy. Three sworn brothers, all who vowed for greatness when they get older, but what if there was another sworn brother, older than the three of them, who sets out on his journey long before the other three have ever done the same, with the same eyes that Roger had.

Enter Roger D. Y/N, and yes son of the Pirate King, Ace's older brother, and otherwise known as the Scourge of the Marines, or Mad Man Y/N. Long before Ace was ever born, Y/N is the son that Roger barely knew other than a name to remember in his final days as pirate. Now, however, at the age of 23, Y/N sets out on a journey to help his brother, Luffy, make his dream to become Pirate King a reality, because just like his father, he can see the wide toothy grin that he can vaguely see in his sworn brother.