In an endless void of echoes and darkness, two beings—Black and White—meet and discover one another through their light and shadow.

In a school where students are stressing out as the only thing that value them are their grades, appears a tale about “the Homework thief” who steals nothing but students’ homework. The stolen homework will get returned—with detailed annotations as well as encouragement to the students. The Thief and the students start to interact with each other, and together they discuss what is truly important and is missing in their education.

In a overhead mid-century based magical world, a 19-year-old teen with a nickname"the Demon Lord", Zelig Leighton, heads off onto a journey, searching for the place lost in tales, as well as the answers to his life.