Yameme vs Math Demon

In this new Yameme series, a new student, Feng, is added as a new character. Feng is playing mobile games with Yameme and her friends as a group to bring out the world views of the game world. In the first episode, all people in Dongyan Town became poor in mathematics because of Toad’s wish. The Math Demon took the opportunity to mess around, leading to a crisis in the real world. How will Yameme and her friends defeat the Math Demon and help the world return to normal?