Kesshū Ōtsuka Is a demon slayer. He is the Blood Hashira that uses blood breathing. Kesshū is 19 years old and he is 168 centimeters tall. The blood Breathing has Nine Forms First Form Hemorrhage, Second Form Blood Fall, Third Form Laceration, Fourth Form Slicing Vessels, Fifth Form Vermillion Moon, Sixth Form Dance of the Circulating Cells, Seventh Form Bursting Capillaries, Eighth Form Transfusion After Blood Loss, and Ninth Form Blood Bath. Kesshū mostly calm and stern, he uses Nichiren sword