Shiryu is an ex-Head Jailer of Impel Down and he is one of the Ten Titanic Captains of the Blackbeard Pirates, as captain of the Second Ship. He is a bloodthirsty psychopath and he tends to keep a calm, cool-headed demeanor even in tense or unexpected situations, his fond of his blade and seems to relish testing it against others. He appears rather deceitful and treasonous and he also does not seem to care much about personal details, especially if pertaining to relations he cut off. 