Who have read the story about Exo being princes and they fell in love with a girl who is an extraordinary shifter which can transform into legendary and ancient animals like pegasus, chimera, and dragon?

and Exo's father, which is the king, is the twin brother of the headmaster/principal of the school that they will be entering......

and also the girl has a twin bestfriends which are boys and myungsoo is also in the story, w/c is her ex and now a PE teacher of the school (magical school)

i read the story last year, maybe april?, i can't really remember......

has any one read it? I just want to know the title....

thanks :)