Are You Him?

Shinjuro Rengoku Jr. is the prodigious son of Shinjuro Rengoku and the middle child of the Rengoku siblings. Ever since his mother told him he had the strength to protect others, he considered himself the "main character" of a story. His arrogance leads him to seeing the other people in his life as side characters and antagonists to develop his story. Despite his ego, he dreams of defeating the demons and living up to his mother's words. What happens when Shinjuro seeks vengeance against Muzan Kibutsuji for killing someone he loves? What happens when Shinjuro finds the key to finding Muzan?