"Scryed Alteration I Tao" is a two-episode OVA that serves as a condensed retelling of the original 2001 anime series "s-CRY-ed." The story is set in an alternate version of Japan, where a catastrophic event known as the Great Uprising has transformed the Kantō region into a wasteland called the Lost Ground. In this unstable environment, certain individuals develop supernatural abilities known as Alter powers, which grant them unique and often destructive capabilities. These individuals are referred to as Alters or Native Alters, and they are both feared and hunted by the government organization HOLY.

The narrative centers on Kazuma, a hot-headed and independent Alter who lives by his own rules, often clashing with both HOLY and other Alters. Kazuma's life takes a dramatic turn when he encounters Ryuhou, a disciplined and justice-driven Alter working for HOLY. Despite their opposing ideologies, the two share a deep connection due to their shared past and the mysterious origins of their powers. Their rivalry intensifies as they repeatedly cross paths, each driven by their own sense of purpose and justice.

The OVA condenses the original series' plot, focusing on the escalating conflict between Kazuma and Ryuhou, as well as their individual struggles with identity and morality. Kazuma's journey is marked by his desire to protect those close to him, particularly a young girl named Kanami, while Ryuhou grapples with his loyalty to HOLY and his growing doubts about their methods. The story explores themes of power, freedom, and the consequences of wielding extraordinary abilities in a fractured society.

Supporting characters, such as the enigmatic Sherrice and the manipulative leader of HOLY, Strauss, play pivotal roles in shaping the narrative. The OVA also delves into the origins of the Lost Ground and the true nature of Alter powers, revealing a deeper conspiracy that ties the fates of Kazuma and Ryuhou together. The climax of the story sees the two protagonists confronting each other in a final, decisive battle, with the future of the Lost Ground hanging in the balance.

"Scryed Alteration I Tao" retains the core elements of the original series while streamlining the plot for a more concise viewing experience. It provides a focused exploration of the central conflict between Kazuma and Ryuhou, their personal growth, and the broader implications of their powers within the dystopian world of the Lost Ground.