Demon Slayer: Kimetsu no Yaiba, Vol. 1 by Koyoharu Gotouge

Tanjiro sets out on the path of the Demon Slayer to save his sister and avenge his family!

In Taisho-era Japan, kindhearted Tanjiro Kamado makes a living selling charcoal. But his peaceful life is shattered when a demon slaughters his entire family. His little sister Nezuko is the only survivor, but she has been transformed into a demon herself! Tanjiro sets out on a dangerous journey to find a way to return his sister to normal and destroy the demon who ruined his life.