It 's about a magic school which is build in another world,in there,the M riders must to destroy the power of evil side.

An academy takes in kids with supernatural abilities. As they find their places in the academy, they learn to control their gifts. Soon, they realize that Earth is being invaded by dark forces and the school is gathering five M Riders to fight these forces. These riders are Ai Rui Ke, Princess Nai Ya, Mi Ya Xing and the two new students Li Yan Jian Ni and Lan Bao.—MyDramaList

The M Academy may looks like any other magical training school, taking in kids with supernatural abilities and train them to control their gifts. But its real goal is to find and gather the legendary five M Riders and a princess, to protect Earth from being invaded by the Dark Forces.—Studio886