Demon Slayer and Jigoro's final act in the series ... to punish him for having a student who became a demon. Giyuu Tomioka and Tanjiro Kamado would have been similarly punished had Nezuko Kamado ...

The Insect Hashira, named Shinobu Kocho, is the second active Hashira that fans are introduced to in Demon Slayer, behind only Giyu Tomioka ... a Hashira before her death, several years prior ...