Demon Slayer

The hero, Tanjjiro Kamado, most of his family are killed by some demon. However only his elder sister survived but she became a demon.

Tanjiro went to the journey with her because he would like to get revenge on demons and get back her sister to a human.

He fights to a lot of demon with his slayer and a special breathing methods.

All the demons used to be a human in past days, however they are struck and became to a demon.

Tanjiro empathized their sadly feelings and the drama in past days however he defeats a lot of demons.

He grows up to be strong after a lot of battle experiences.