In the ruins after the destruction of the Sound Nest organization, Angel and K9999 accidentally discovered a mysterious boy-N-3. Although he has lost most of his memory, he has the powerful ability to control electricity. Angel named him "Carlos Sanchez" and decided to take him on a journey to find the secrets left behind by the sound nest. Although K9999 is indifferent on the surface, he gradually becomes interested in Carlos' abilities. The three formed a wonderful team, exploring the ruins and facing unknown dangers and challenges. At the same time, Kusanagi Kyo and Yabuki Shingo received an urgent notice from Kagura Chizuru and learned that the Eight Heroes were trying to awaken Orochi, and Kusanagi Kyo's girlfriend Yuki, as the reincarnation of Inadahime, became their target. In order to stop the conspiracy of the Eight Masters, Kusanagi Kyo and Yabuki Shingo must find the long-missing Yagami Temple and join forces to fight the upcoming crisis. The two story lines are intertwined, and the remaining secrets of the Sound Nest and Orochi's resurrection plan gradually surface. Carlos's past, the conspiracy of the Eight Elites, and the threat of the big snake will all be revealed one by one in this adventure...
