Kyojuro Rengoku is not only one of the most popular Demon Slayer Hashira, he is one of the most iconic anime heroes ever. His Flame Breathing expertise, talent with a Nichirin sword, unrelenting bravery, and eventual courageous sacrifice during his final Mugen Train Arc battle all combine to make him a character worth greatly admiring. @theprincedeguzman on Instagram has designed a dramatic, flame-filled Rengoku look that definitely shows appreciation for his heroic deeds.