Satan

Trademark Techniques: Black Widow's Whisper
First Appearance: Manga Chapter 203, Anime Episode 63A

Satan the shadowy Dark Lord of all Akuma Chojin.

Satan is an evil entity that acts as the lord of all Devil Chojin. He appears at several points during all three main series, and often as a disembodied cloud of smoke with the silhouette of a face. He has enough strength to directly influence many chojin, including gods like Goldman, whom he was able to gift a new body. In the 2011 sequel series, he is given a corporeal form.

Satan prefers to hide behind the scenes and manipulate pawns to do his bidding. If he were to get into direct conflict with a strong opponent, he would lose pretty easily. He loves to punish those who failed him.

As an incomplete deity, Satan covets the chance to become a god. He will stoop to anything to achieve those ends.

Satan has manipulated Buffaloman, General Devil and Omegaman Aristera to do his bidding. As a result, he is indirectly responsible for the events of the Seven Devil Chojin arc, the Six Devil Knights arc, and the Six Spears of Omega Centauri arc.

(Source: Kinnikuman Wiki)