Kimetsu no Yaiba (鬼滅の刃, Kimetsu no Yaiba) is a manga written and illustrated by Gotouge Koyoharu. It is serialized in Weekly Shōnen Jump. It has been licensed for release in English by Viz Media starting in 2018.
Tanjiro is the eldest son in a family that has lost its father. One day after visiting another town to sell charcoal, Tanjiro ends up staying the night at someone else's house instead of going home because of a rumor about a demon that stalks a nearby mountain at night. When he goes home the next day, tragedy is waiting for him.