Type Mercury

Also known as ORT, it is on of the Ultimate Ones.

Ultimate One of Mercury. It's thought that he's closed himself off in his Crystal Valley until the promised time.

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Apparently landed in South America before the Common Era. As an attack-type life form, boasts power on a level far beyond anything else. The former 5th Ancestor attempted to capture it and was killed in seconds. Afterwords, treated as an Ancestor when it was discovered to have vampiric like properties.

Alien entity some 40 meters tall covered with outer skin that is harder, more flexible, more temperature resistant, and sharper than any other substance on the surface.

Said that as long as the battleground is Earth, it has no weakness. In addition to the ridiculously high attack parameters of the main body, it also possesses a special ability similar to Reality Marble - Crystal Valley, invasion by a horrifying but beautiful landscape. While some magi and the 27 Ancestors control internal worlds called "Reality Marbles", the one that ORT has is on a completely different level.

By just him being there, the Earth is changing to the environment he lived in. That is, the rewriting of physical laws, a leaking of his "alien order/system".

If man is that which destroys the planet, then ORT is an invader that paints the earth world into an alien planet. Just movement by ORT will cause the trees around him to crystallize, forming a crystal valley (spider web).

Can't be killed by Mystic Eyes of Death Perception. Doesn't have the Gaian concept of death, so the Eyes can't perceive it. It can be destroyed physically though.