Warrior, Murderer, Guardian, Chaos-Bringer, Hero, Villain.
Set has been many things over his life in the Pantheon of Egyptian Gods. He was at once the Guardian of the Desert, then the unisputed leader of the Upper Kingdom of Egypt. He was a god of the desert, as well as darkness, chaos, and storms. He had an intresting duality depending on which era of myth that is looked at.
He was a ruler who was jealous of his brother and killed him. Later he ruled beside his nephew Horus in peace. Later still he served as the Guardian of Ra, putting on a falcon's mask and battling Apep the Serpent as Ra sailed his barge though the underworld. In his finally incarnation, Set was seen as a force of both evil and darkness who slaughtered with abandon and brought chaos to the other gods.
Seiichi's resonance is an odd thing. The young man learned early that he had a special power over his own Resonence, he has the ability to change the feel and the tone of it as well as the strength. He uses this power to keep his masked alter-ego hidden from the world and large and is the chief reason he can live a double life and not be found out by other Pesona users.
Seiichi's resonance is that of a desert in the noonday sun. Bright blasting heat, the dry smell of sand and wind, and the whisper of secrets and mysteries burried just under the ever shifting surface.
When in his alternate form, it is the cold and deadly chill of night. Biting and gnawing on the bones, cutting winds that feel like blades of steel and a deadly focus on one goal.
Now that Seiichi has come to terms with his darker side, the alternate form manifests rarely and in its place is a combination of the two forms. A chaotic desert wind with hidden whispers and mad eddies of cold and hot that whirls around him.