Tomorrows (トゥモロウズ) is a manga written and illustrated by Masato Deguchi. It was serialized in Shounen Sunday.
Anan and Minmi lived in a laboratory as small children, where scientists experimented on them and gave them special powers.
One day, the professor helped them escape, out of guilt from what he had done to them. The two of them continue to hide ten years later, certain that if their powers are exposed they will be captured and returned to that hell.