Cross Marks

The Cross Marks are individuals with special powers who were abandoned by Eden. Eden believed them to be valueless, as they did not have powers that were very strong. These people are marked by a dark X on them.

In chapter 158, when going through the secret entrance to Eden, Ogami and his companions meet a bunch of them. Yuuki explains about their origins. Yuuki also reveals that he was once one as they try to attack Ogami and company. Most of them are later killed by Utah of the Mirror. He later explains that the bar code meant that those people with it are the elites of the Cross Mark and have a purpose. He then attempted to kill them all, until Yuuki intervened. With their last bit of power, they gave it to Yuuki, unlocking Yuuki's Voice of Life and status as the "Apple" of Eden.

Yuuki blames himself for his inability to save the Cross Marks, while the others remarked that Eden was much more sinister than they had appeared.

Powers and Abilities
The Cross Marks behind the door showed the ability to absorb powers. Another group of them showed the ability to fire out 'waves' of energy from their mouths.

Known Cross Marks

 * Yuuki Tenpouin
 * Shigure
 * Utah
 * Various others

Trivia

 * The Cross Marks are likely a reference to the experiments of the Mibu Clan in Akimine Kamijyo's ealier work, Samurai Deeper Kyo.