Master of the Abyss and the ruler of Atlantis. He has white hair, sky-blue skin, and wears various blue ornaments. (Mana Core Level 100+)

Queen of the Winter Castle (the castle located in Frostia). She is cold-hearted but occasionally shows warmth. She possesses immense magical power. (Mana Core Level 75+)

The head of Paradise. A powerful warrior who uses techniques like Cherry Blossom Flash (a forward slash that explodes even if the target survives), Continuous Blossom Slash (a rapid series of slashes followed by an explosion), and Falling Blossom Slash (a technique that fires small sword-auras). He wears blue clothes and has light purple hair that covers his eyes. (Mana Core Level 50+)

A wanderer of the void. He occasionally returns from the abyss and seems to be well-acquainted with Poseidon. He uses powerful magic, including Lightning Strike and Revolving Moon Pole (a technique that pulls enemies in with mana waves before exploding). (Mana Core Level 75+)

The guardian of the Cave of Oblivion (a cave forgotten by the world; even teleportation is 'forgotten' there, making escape nearly impossible). He crushes opponents with two giant hands, binds them with chains, or blows them up with mana orbs. He appears overwhelmingly stronger than Poseidon. He has multiple arms, dark purple skin, crystals on his back, and is bound by chains.