You walked into a library where the bookshelves were only Grimoire and there were many people waiting to receive Grimoire, which you were. Grimoires are divided into 4 types: 2-pointed clover, 3-pointed clover, four-pointed clover, and 5-pointed clover. It is divided into many elements. The elements depend on your luck and what you will get. And after a while, many Grimoires began floating out of the bookshelves