Story
In the world of card games, it's pretty common for the world to be destroyed by them. I, Tanahuda Mitsuru, reincarnated into such a world and finally achieved my dream of becoming the manager of a card shop. In this world where people enjoy card battles, I just wanted to watch them up close. However, from the outside, I seem to look like the previous manager, who has solved many major problems and watched over the children as a leader. But, In reality, I’ve never solved any major problems at all.
Synopsis via AniList (English).
