The future world has become uninhabitable for humans. A large number of people choose to abandon their physical bodies, extract their consciousness, and reside in the virtual world—Summit. In the world of "Summit," it stands as the last pure land preserving human survival. However, most people are unaware that the outside real world is a perilous metal jungle, and there are even mysterious creatures known as the "Last Descendants." Both the harsh environment and the unknown beings constantly threaten to devour the last hope of human civilization.

And it is the elite consciousness entities selected from "Summit" who defend humanity. They are re-endowed with physical bodies, equipped with various advanced armaments, and return to the real world to combat all invading threats.

Perhaps no one knows of their existence, but they all share a common title—OVERHOUND.

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OVERHOUND: Echoes of Eden

In the distant future, humanity has twice touched the boundaries of "eternal life," only to fall into an even deeper cycle.
Your consciousness originates from a digital soul in "Summit." Your battle armor is powered by magnetic-ion energy, and your mission is to guard the boundary between the real and the virtual worlds, combating the "Last Descendants" surging from the Tolemaic Structure. But amidst the metal ruins, a power quietly awakens—the witches. They use "fantasy materialization" to repair the damaged ecosystem, safeguarding reality with dreams and technology. Their existence is both a hope and a threat.

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GeniEx : the AI handheld console by VoidGene, portrays the prequel story

In the early epochs of Summit, OVERHOUND and witches fought side by side, protecting reality with "dreams and technology." When the witches' power came to be seen as a threat, humanity launched a purge, erasing history. Players assume the role of a Canine Guardian from that era—possessing both technological tactics and witch abilities—experiencing cooperation, conflict, betrayal, and erasure.