The academy that is in the central city of the human world 'Pumeungoljjagi', 'Seumugaldae'. A boy who lives in this place 'Neosaegaram' is the one who succeed the name of the 'Jaksaljabi', the symbol of the hero, which is manifested for the first time in centuries. But with this remarkable background, in reality, Neosaegaram was just a grey boy who has no power nor emotion.
In this meaningless daily routine, one day a boy contacts with a girl.
The girl's name is 'Sonagyurae'. She is one of the people of the 'Git gajin i' that is the enemy of the humanity, and she was living in the heaven once, but fell from the sky.