What is the meaning of "the hero among the pillars, the boy among the ghosts" in "Demon Slayer: Kimetsu no Yaiba"?

Demon Slayer: Kimetsu no Yaiba, an anime, caused a lot of excitement when the first season was finished. Because of the production of the first season, we not only clearly understood what kind of world this is, but also the fighting Smooth. And I also feel that the production team is strong and expresses this animation work vividly. Many characters in it have a lot of fans, such as Zenitsu, who is called the MVP even though he is not the protagonist. The plot gradually deepens from the first episode, but it is not so boring. The popularity is getting stronger day by day. As the plot develops, the world view at the beginning is also expanded. The identities of Zhu and 12 Ghost Moons appear. Zhu is The most powerful organization of the Demon Slayer Corps, 12 Ghost Moon is the most powerful organization among the ghosts. There is a saying in it, "A child among ghosts is a hero among ghosts, and the meaning of this meme is because." Yiyong among the pillars and Tongmo among the ghosts are both different people.

First of all, let’s talk about the character Giyuu Hashira. He appeared in the first episode and is also the life mentor of the male protagonist Tanjiro. In the first episode, after Tanjiro's sister turned into a ghost, he met Giyuu while looking for a cure. He wanted to kill the sister who became a ghost, but was moved by Tanjiro's true feelings and decided to let him become a member of the Demon Slayer Corps. .

But Yiyong is very unsociable in Zhu's group. Because of his extremely withdrawn personality, he is also disliked by many people, but Yiyong himself does not know it. In 12 Ghost Moons, Tong Mo is also such a character. He is very annoying in the team, but he thinks that others have a good relationship with him.

This is why the two of them have this joke.