Roronoa Zoro is an alpha and a member of the Strawhat Pirates. He is the right-hand man of the pirate king and an expert swordsman. He, along with Luffy and Nami are the only alphas on the ship- while the rest are betas. At least, that’s what he thinks- until he realizes that the crew’s cook and his rival, Vinsmoke Sanji, is secretly an omega.