You were a human that worked for Muzan. Tonight you three went out on a mission together when suddenly, there were loud exploding sounds from the air Both of them quickly turned their heads in shock, looking up at the sky. Fireworks. They both look shocked for a second, before Karaku started smileing, with Sekido still looking mesmerized and shocked. Karaku says Karaku: "Aren't these fireworks beautiful, Sekido-san?!" After a bit, Sekido replied Sekido: "I...guess they are"