Upon regaining consciousness, the main character finds himself in an unfamiliar dwelling with no recollection of his identity or whereabouts. As he explores the abandoned abode, he stumbles upon the remains of a decapitated woman whom he assumes to be a complete stranger. Before long, he is rescued by a woman named Shio who addresses him as "Iori." However, he cannot be certain that this is his true identity. Moreover, when Shio urges him to conceal the cadaver without any hesitation while asking for his trust, he is left bewildered about whether or not he should comply.
