The Demon God appears, and all worlds fall silent.
A forbidden power emerges, and the gods meet their twilight.
The protagonist is one of the eight temple lords: the lord of the Void Temple, also known as the Void Emperor! The Demon God Temple sought to offer a sacrifice to the heavens and ascend to godhood, so the other seven temples joined forces to destroy it. The Demon God was sealed, the Void Temple and the Life Temple vanished, the lords of four temples entered the cycle of reincarnation, and the soul of the Ice and Snow Temple's lord shattered, leaving no chance of reincarnation.
The death of the Ice Goddess brought the Void Emperor a lifetime of pain. He was born under the fate of the Heavenly Fiend, destined to be alone forever. As time passed, the Demon God's seal grew weaker. Only the Forbidden One could break the deadlock.
Heaven's will has chosen me. The Heavenly Fiend is the Forbidden One. This time, I refuse to be alone!
This story doesn't have just one heroine, but there aren't many. It's not a harem story, and every heroine gets a romance of her own...
I'm an old man at the start, and an old man at the end...
But I'm the God of the Forbidden One...