Ark
After being blackmailed, the brothers meet with a man convinced humanity is heading towards it's end. On their way out the three who ambushed them before show up to kill them. But they aren't too much of a threat because Naoto's power has become much stronger. He's able to block all of their attacks without any wasted effort. Shouko shows up, but only to say goodbye because hse isn't able to keep her form any more. After returning to the other world they find Futami's message. It's a list of people found by the Ark, including those who were eliminated by them.
Aired 18/11/2006EP 18 - Ark
NIGHT HEAD GENESIS
It is said that 70% of the human brain capacity is unused. If humans possess incredible power, it is strongly believed to be lying dormant within this region. This unused 70% brain capacity is known as "Night Head".
The famous work 'NIGHT HEAD' is going to break the silence. They were abandoned by their parents because of the psychic power they possessed. They are the Kirihara brothers, who lived in a laboratory within a barrier-protected forest. They have escaped from the laboratory, and a new wave of 'Revolution' is about to arise.
A new "Night Head" is about to be awakened.