Water Breathing (水みずの呼こ吸きゅう Mizu no kokyū?): Taught to him by Sakonji Urokodaki, a previous Water Hashira and Water Breathing Cultivator, this was Tanjiro's initial Breathing Style. He became extremely proficient in it, to the point where he could modify pre-existing forms to suit the circumstance. due to his body not being suited to Water Breathing's techniques, Tanjiro decided to switch to the Hinokami Kagura as his main Breathing Style. Despite this, Tanjiro has not abandoned Water Breathing.