During the first few episodes when Inosuke is introduced in Demon Slayer, his story is completely unknown. However, as the ...

When he came of age, Inosuke joined the Demon Slayer Corps to fight the demons. He became the most potent fighter and was able to kill Doma ... up with his breathing style, Beast Breathing.

Spoilers for the Demon Slayer manga series ... it's lacking in the power department. Beast Breathing is a bizarre style that was invented by the boar-headed Inosuke Hashibira, and as such is ...