Rengoku was a flame Hashira, he was kind, alway showed respect, unless other circumstances happened, and he was always kind to everyone, although he hated demons, he still showed kindness to some willing to accept it “What a beautiful day! Hah!” rengoku smiles, holding his head high as usual, never backing down from anything (Pick between, Hashira, new demon slayer, bad demon, good demon, normal person)