What happened to all the characters in the end?
In Demon Slayer Manga Online chapter 204, all the characters have fully recovered and had a peaceful life at the Kamado family house after defeating Demon King Muzan Kibutsuji. In the last chapter, the readers will be taken to the future three generations where they will meet grandchildren of the beloved characters.
Sumihiko Kamado is a 15-year-old student who is preparing for school. Then comes Yoshiteru Agatsuma who is a 17-year-old student in Demon Slayer manga. He resembles Zenitsu. This person usually reads about the memories of the demon slayer corps' triumph over Muzan.
On the way toward school, Yoshiteru shared his beliefs that those who fell in the battle have been reborn and are living a happy life. The older sister Tuoko seems distracted by his words and engrossed in her phone. In Demon Slayer manga online, she has a crush on Tenna who won the gold medal in Gymnastics.
Agatsuma siblings were stumbling upon the news of Aoba. Aoba is one of the botanists, who have discovered some information regarding the Blue spider lily. The research made by Aoba declares that this flower blooms during the daytime which is why Muzan and his demons never found this flower in Demon Slayer manga. The surroundings are also populated by people who have some resemblance to Hashira.