The Lumen plane has been plunged into darkness ever since. Plants need light. They need a lot of light to grow. The darkness impacted them the most and they started to die. But that's the least of the problems that the attention of a demon God brought to the plane.
The temperature of the plane began to fall in the absence of the light of the sun. Snow fell and the plane was plunged into darkness. A lot of living things died because of these changes. The cold and scarcity of food are the main causes of death. But life will survive. Life will always survive when there is ample Mana.
If given time, plants that don't need light and can survive the cold conditions will evolve and spread throughout the plane. The absence of light will cause an acceleration in plants for survival in darkness. This happened in the Lumen plane. Coniferous plants capable of withstanding the cold replaced the lush forest. It happened quickly too because of the guidance and encouragement of the tree people.
Unfortunately for the Lumen plane, its problem has only just started. A demon God doesn't come and block the light into a plane just for the kick of it. Freezing conditions and famine are not exactly entertaining to watch. Demon gods are not that bored. The next calamity came swiftly when the Lumen plane got infected by a plague meant to remove all of life. This is all because CARNAGE targeted the Lumen plane.
The major reason why CARNAGE targeted this plane is that it has elves living within it. Some people call the tree people elves. There are several types of elves. There are sun elves, moon elves, high elves, normal elves, and tree elves. The tree people are tree elves. They were originally tree spirits but were blessed by the fountain of life and became the tree people.
CARNAGE doesn't target elves because he hates them and wants to vanquish them throughout the realm tree. In fact, of all the races in high heaven, elves are its favorite race. It is all because it can create its descendants from elves.
Demon gods are invasive organisms. They are a conglomeration of viruses with a single aim which is the subjugation of everything. They live to bring all of existence under the banner of their sin. They do this either by infecting everything or propagating their sin.
Demon gods don't do all these because they have to. They do them to grow stronger. Propagating their sin increases their energy capacity and will allow more energy and matter to bind to them. It can be likened to a vessel. Pouring water into a vessel with an empty space will lead to the vessel withholding the water. But water will just spill off if you pour water into a full vessel.
So demon gods need to increase their capacity so that they will grow stronger if they absorb something full of energy like a demon king. The energy of the demon king won't go to waste. It won't spill off. It will be a shame to eat a demon king for nothing. Only GLUTTONY can eat without limits. The other demon gods need to propagate their sin.
One way to propagate sin is to create a race that spreads that sin. CARNAGE has tried to modify other races but the percentage of survival is very low. It is like Aeternus and his chaos spark. His subordinates have a change in race when they fuse and evolve with his Chaos spark but the chances of surviving the procedure are very low.
Aeternus had to modify his chaos spark for it to have a hundred percent evolution success. He cut back on some of the properties of his chaos spark to achieve that.
What Aeternus did was impressive. He managed to change his mark of sin as a high-rank demon. But he has not been able to have any success ever since he became a demon king. It should be noted that his subordinates became a source of Chaos Accumulation to him and they empowered him. So creating a race is a very good way to grow stronger as a demon.
Creating a race is a very rare and special ability. Demon kings are rarely capable of doing it. But it is something that all demon gods can do. CARNAGE has fused completely with its mark of sin so it too is capable of creating sin abilities and creating races that will gain divine abilities related to it. It has tried several races but they haven't been as successful as the elf race.
Elves of all kinds are very accommodating of the sin of Carnage. It could be because they are malleable or because their nature is the direct opposite to Carnage. Opposite attracts sometimes and sin likes to bring opposition to heel so that might explain why elves are highly compatible with Carnage. The demon god of wrath is compatible with ogres and orcs. They create rage beasts that WRATH is known to be the ancestor of.
CARNAGE targeted the Lumen plane to grow stronger. The plane has a divine plane so it can't get into the plane directly to reach the elves it craves for. It had to attack from the void outside the plane.
A massive red cloud of boiling and violent blood approached the bubble that represented the plane in the void of the realm. Then the cloud covered the entire bubble. The cloud had to stretch itself but it managed to engulf and seal the bubble completely.
This development caused the sun to darken. The light of the sun can still reach the plane but it has to be filtered through the red cloud. Most of its light has been blocked by the presence of the demon God. The common inhabitants of the plane were only perplexed by the change. They thought nothing much of it. But a great fight had started in the void outside the plane immediately. Several Origin gods had assembled and attacked CARNAGE.
---------
A/N: Bonus chapter for reaching the voting goal of 500 power stones.