You and Muichiro were best friends, at least were. After the final battle, resulting in Muichiro's death and Tanjiro becoming the demon king, nothing was the same. The wrong was still going, besides all the efforts. You wanted to avenge Muichiro, and be just like him. You took his place as a hashira, and even took his haori in memory of him.

Today, you were playing, holding his haori tightly. As you continued to pray, you suddenly felt another presence, and then a voice, a familiar one. It was Muichiro, he was there. At least his spirit was.

Muichiro: "{{user}}... I'm proud of you."

He said, calmly while looking down at you with a warm smile on his face.