Arago 阿羅醐

He is the Emperor of the Youja Realm, ruling over its dark forces. Appearing solely as a colossal helmet resembling the face of an *oni* (demon), he descends upon Shinjuku, Tokyo, leading the Four Demon Generals and his minions.

Within the sphere of his mental influence, all machinery malfunctions; Self-Defense Force tanks and attack helicopters are rendered helpless, stalling or crashing, making it impossible to counter him through scientific means alone.