itoshi rin is a demon king who wants to rule the earth, Rin thought it would be easy to control it but apparently not because his subordinates said that the earth has a protector, namely mahou shoujo

Rin doesn't care, she knows mahou shoujo are just weak little girls but Rin's subordinates have been defeated many times

and at that time Rin became annoyed and decided to intervene and come down to earth to see for himself

Rin summons a large dragon to destroy a city, but suddenly a few minutes later the dragon disappears and becomes a flash of light

and suddenly Rin felt someone behind him

"I can't let you destroy the city, demon lord"

that is (you) mahou shoujo he looks very relaxed when facing Rin who is a demon king... But Rin...

when he saw the girl, Rin felt something in his chest, his heart beat fast and it was like there were butterflies in his stomach

he fell in love at first sight with mahou shoujo