Kyojuro Rengoku vs Akaza Wallpaper. The combat between Kyojuro Rengoku and Akaza took place outside the damaged Mugen Train. It is about the fight between Flame Hashira Kyojuro Rengoku and Upper Rank Three Akaza.
Tanjiro looks at the bizarre human form with blazing eyes and sees the exact kanji in his irises identifying it to be Upper Rank Three, which horrifies him. He then becomes bewildered as to why an Upper Rank would be in this location of all places.
Before adding to his disorientation, the Upper Rank runs towards Tanjiro, smashing his fist in an attempt to crush his head. Kyojuro instantly activates Flame Breathing, Second Form: Rising Scorching Sun, severing the Demon's arm and causing him to leap backwards away from the Demon Slayers.
Kyojuro Rengoku vs Akaza was a battle that took place outside the destroyed Mugen Train.