While out in the woods, Sho and his companion Tetsurou come across a strange alien object. When this artifact fuses with Sho, he transforms into the powerful Guyver. Now, armed with extraordinary abilities, Sho is thrust into a conflict against the sinister Chronos corporation and their bio-engineered Zoanoids, determined to reclaim the Guyver. As Sho's loved ones become targets of Chronos, he is compelled to engage in a relentless battle to protect them and confront his adversaries.