Most of these are, in fact, complete news to Zetta himself. Because he's an idiot.
-Zetta had an apprentice named Salome who was desperately in love with him. She confessed, he was an idiot about it (loved her, but is an idiot in general), and she left him. -Zetta is the strongest being in the cosmos because Salome, who was much stronger than she ever let on, secretly funneled her mana power to him. -He set the Sacred Tome on fire, himself. Because it called him an idiot. And that was a secret plot by Pram the Oracle and the Sacred Tome itself; it had nothing to do with the Ohm, of course.
-He really cares about Ruffnut, Hit Girl, Katara... even Ophelia and Starfire. -He lied to Ophelia and Starfire about being a hero, not a demon, but he completely forgot he did. Somehow they never noticed or never called him on it. -He's technically correct when he says writing a wish for all the worlds to return, with enough mana power, would do just that. He hasn't told anyone, though, that a wish like that would make every world in existence part of his Netherworld. He also hasn't told them that he'd release every world not his from his Netherworld.
Zetta: By popular request!
-Zetta had an apprentice named Salome who was desperately in love with him. She confessed, he was an idiot about it (loved her, but is an idiot in general), and she left him.
-Zetta is the strongest being in the cosmos because Salome, who was much stronger than she ever let on, secretly funneled her mana power to him.
-He set the Sacred Tome on fire, himself. Because it called him an idiot. And that was a secret plot by Pram the Oracle and the Sacred Tome itself; it had nothing to do with the Ohm, of course.
-He really cares about Ruffnut, Hit Girl, Katara... even Ophelia and Starfire.
-He lied to Ophelia and Starfire about being a hero, not a demon, but he completely forgot he did. Somehow they never noticed or never called him on it.
-He's technically correct when he says writing a wish for all the worlds to return, with enough mana power, would do just that. He hasn't told anyone, though, that a wish like that would make every world in existence part of his Netherworld. He also hasn't told them that he'd release every world not his from his Netherworld.