Tri-Ashura Realm

Tri-Ashura realm. The realm is being ruled by three Blood demon families.

The Crimson Blood demon family. The family that rules one-third of the planets and has a fire elemental bloodline.

The Emerald Blood demon family. The family that rules one-third of the planets and has a Wood elemental Bloodline.

Finally, the last but the most powerful of all three. The Black blood demon family. They use dark elemental energy and they also have decent art of necromancy running within their family.

But that is not the reason why they are the strongest. It is because out of all three, their backers are the strongest and they don't fail to remind the two families of the fact and push their buttons from time to time.