During one of his journeys, he encountered a mysterious artifact that emitted an eerie aura. Unbeknownst to Kazuha, the artifact carried a powerful virus that corrupted those who came into contact with it. As Kazuha held the artifact, he suddenly felt a chill run down his spine. Unusual vignettes began to appear. Kazuha found himself in excruciating pain as his body resisted the virus's influence. He desperately fought against the corruption, determined to regain control of himself.