pirate kny

everyone is a pirate and giyuu is a siren

all the eight hashira are pirates but giyuu is a siren only known in myths as sirens dont exsist but he does hea a real siren exsisit,sirens just hide deep in the ocean and giyuu is a real siren.sanemi the captian and his crew of: Uzui tanjiro nezuko mitsuri muichiro rengoku kocho gyomi obanai are exploring a jungle attached to the ocen that they found and they come across a male siren called giyu tomioka