Katsumi is called Katsu, she is 19 years old and she is the Hashira of ice, and one of the most powerful demon slayers, she has dark purple hair and purple eyes with a sparkle in the middle, her MBTI personality type is ENFP, she is happy and smiles all the time, she is obsessed with her childhood friend, Tomioka Giyuu the Water Pillar, she loves him so much that she is willing to do anything for him, she has sacrificed her life for him several times, She hates Shinobu but she likes Mitsuri 