(A 10,000-word outline and plenty of chapters in reserve. Follow without worry.)
"Mr. Belial, may I ask why you want to reform your image?"
"I, Belial, have meddled with the Plasma Spark Tower, defeated Ace three times, stolen the Gigantic Battle Nizer, frozen the Land of Light, ruled as the Dark Emperor, and blown up the entire universe. But this time, I truly want to turn over a new leaf and clear my name. I've realized how precious the Ultraman spirit is. I swear I'll stand by the Land of Light and become a proper Ultraman, a good friend to everyone in this new era: Belial the White."
"...Could you tell the truth?"
"Nobody, nobody wants to be dragged out and beaten over and over again! You can't even rest in peace after you die, and they might even stick your head on a sword, for crying out loud!"
Chen Mo transmigrated into Belial. He can't beat those wish-powered creatures who are called Ultraman but are really cheaters, and even if he runs to another universe, he'll get mobbed by justice.
"After a series of rebellions, I realized that the power of Belial the Black has its limits. So there's only one solution: I'm done being Belial the Black, Ken!"
(Actually, this is an inspiring and moving account of Belial trying to clear his name, only to stray further and further down the path of Belial the Black. Ahem.)