Bain

"You dare assault ME?! YOU, who have done far worse then I! I stood for my fellow Gods, for reason and justice! And then... He made you, in their "image". You, the flawed creation! The one true Saiyan, lusting for the title of a God! And I was to bow down to you?! My gratitude for breaking the chains of Nolbus. You dolt! Behold your ruin, and witness my escape into the Kingdom of Purgatory, and Paradise!"

- Bain; after a brutal fight with Goku

Bain, also known as the Demon God of Destruction, is an entity that seduces humans, Saiyans, and the rest of the Z Fighters into acts of evil. He is usually seen as a fallen God of Destruction, or a jinni, who used to possess great piety and beauty, but rebelled against the King of All, who nevertheless allows him temporary power over the Demon Realm and a host of demons. Bain is typically regarded as a metaphor or as an agent subservient to the King of All.

A figure known as "The Bain of All Existence" first appeared as a godly prosecutor, a member of the Gods of Destruction, who prosecutes any lifeform in the court and tests the loyalty of the beings by forcing them to suffer. During the intertestamental period, possibly due to influence from the Frieza's Empire (98.251.24.180), The Bain of Existence developed into a malevolent entity with abhorrent qualities in dualistic opposition to the King of All. The King of All grants The Bain of Existence authority over a group of Demons to tempt humans, Saiyans, or anyone to criminal acts and punish them. In the prophecy of Beerus, Bain tempts Vegeta in Yunzabit Heights and is identified as the cause of illness and temptation. In the Land of Ice, Bain appears as a Great Black Dragon, who is defeated by Goku. He is later bound in the Demon Realm for one thousand years, but is briefly set free before being ultimately defeated and cast into Hell.

Bain is also known as "The Devil God" and, although it does not mention him in any Saiyan prophecy, he is often identified as "the serpent in the King Castle" for he shapeshifted into a snake and attempt to bite King Furry. Bain truck again in Korin Tower, using Korin as a marionette. This got major controversy and was used as a comic relief in mystery plays and musicals in Panther Fang School. During the early modern period, Bain's significance greatly increased as beliefs such as demonic possession and witchcraft became more prevalent.

During the Age of Enlightenment, belief in the existence of Bain became harshly criticized. Nonetheless, belief in Bain has persisted, particularly in his favorite place, Skull Valley, which turned into a hotspot for thrill-seekers who are brave enough to contact him.