The first female Gilgamesh member introduced in the series, Uno (One) can be recognised by her light blue eyes, long red hair and the plait wound around her head. She has high standards; coming across as harsh and criticising. She is the first female member to die and the fourth member overall, impaled mercilessly on the many spears of the Blattaria and glaring at their leader Kazamatsuri the whole time.

After an explosion at an archaeological excavation research facility in the Middle East, the world is changed in unthinkable ways. The sky is suddenly a mirror, electronic devices mysteriously no longer work properly, and children who are born after this point seem to have strange, metaphysical powers. Society is but a shell of its former self, and in the midst of the clandestine forces that brought about this eerie apocalypse is an elite group of young, powerful mutants who are working to restore the world under the direction of a woman known only as The Countess.<br><br>
The story centers on a brother and sister, Tatsuya and Kiyoko, the children of a scientist at the Twin X facility.<br><br>
(Sources: Blockbuster &amp; ANN)