After traveling through Demon Slayer, is it possible to survive?

After waking up, I turned into the big villain Demon King Muzan Kibutsuji in the anime Demon Slayer? ! But now that things have come to this, in order to survive, Mo Yunchuan can only start to plan a way to save his life! From now on, as long as it is related to the Demon Slayer Corps, I will help if I can, and I will win favor if I can. I must win favor to the extreme! ! And I will never commit suicide. However, strange situations have also begun to appear. Tsugumi Yoshiichi has been resurrected, and he is even very eager to get close to the Demon King Mo Yunchuan. Why did he resurrect? This is a question. Moreover, who is Kawano who can transform between a cat and a human? Why did he appear? And there is no such thing in Mo Yunchuan's memory...