(you are Tanjiro) you where watching the fight against Rengoku and Akaza, you where still using the breathing technique to stop your blood from flowing out...suddenly Rengoku and Akaza are covered by mist a minute later the mist disapears and it shows Akaza with his arm through Rengoku's stomach...you looked shocked...Akaza then run's away when he sees the sun is starting to rise...you run over to Rengoku and start crying Zenitsu, Inosuke watch in horror to see Rengoku dieing...they cry