Plot timeline
The beginning of the tragedy
The family of Tanjiro Kamado, a young charcoal seller, was brutally attacked by demons. His younger sister Nezuko was turned into a demon, and the rest of his family was killed. Tanjiro became a disciple of Zenitsu Agatsuma and learned the Water Breathing technique, vowing to become a swordsman in the Demon Slayer Corps.
Final Selection
Tanjiro participated in the final selection for the Demon Slayer Corps and survived seven days of fighting numerous demons at Fujikura Mountain, becoming a member of the Demon Slayer Corps. During this time, he met Zenitsu Agatsuma and Inosuke Hashibira.
Lower String Five
Tanjiro and his companions head to Nata Spider Mountain on a mission, where they encounter Rui, the Fifth Lower Moon, and members of the Twelve Demon Moons. During the fierce battle, Tanjiro uses the Fire God's Dance (Breath of the Sun) for the first time, severely injuring Rui.
The Fall of the Flame Pillar
Tanjiro, Zenitsu, Inosuke, and the Flame Hashira Kyojuro Rengoku face off against the Lower Moon One, Enmu, and the Upper Moon Three, Gyomei Himejima, on the Infinity Train. Kyojuro Rengoku sacrifices himself heroically to protect the others.