Omega Sigma

Omega Sigma, a fusion between 2 elements: mathematics and physics. Even if his body is weak as a paper (compared with Bisani Toribra's powers, sorry for reference to him Geti) his mind abilities are strong enough to defend him in many ways by calculating.

Begin
As young he lost some of basic senses which includes eyes. That made him study maths from older people traveling around and help himself to orientate. Not only that, he advanced to level of a great maths and physics master. He fixed his sight abilities quickly.

After that, he gone to school, Even being 54 years old, he finished it in one year and became even more intelligent.

He then gone to hidden area somewhere to study more. He discovered more things that made him accidentally go in different universe.

It was dark, lonely universe, at first look, hidden in mountains and Woods. It was really odd place, a planet full of life ready to stab some claws inside your body. He started from begin. He studied physics of the place and he was amazed how different conditions were. From some point he thought of adapting to the environment and started training and it can be seen easily. He could deffend himself now, but he wanted to return and share the news.

Here's an explanation how he actually transferred in this universe. In every atom is hidden each universe, and it cannot be seen from the specified angle of science that we have curently on Earth. So, Sigma decreased his size with his own invention of "Shrinking Rays".