Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
On the way home from the usual high school, the main character, Ayaka Yuki, is attacked by a group of dubious black men and kidnapped in a car without resistance.
The mysterious group is a criminal organization with special abilities called "unknown" and is active all over the world.
It seems that the main character was attacked for the research of the parents of the main character who is a famous researcher.
However, the main character is easily rescued by five men with special abilities like "unknown".
Who are the main characters who say "ARK" to the main character who asks "Who are you?"?