a boy finds out that his father works for a secret family-oriented organization, this organization deals with extra-terrestrial threat. the boy then within time is able to lift a sword that people theorized it could not be lifted, this leads him to absorb the power of the sword. now, the boy has to fight off his responsibility to take on his father's organization because he wants to be a hero who does not work in the shadows. by being able to use the power of the sword, his sudden power up causes bad guys to seek him out wanting the power of the sword which is believed to be the power of a fallen angel.