Alex vividly recalled the poignant words of the old man, etched in his memory: "Within the dream world, countless varieties of malevolent entities slumber, while this reality operates on a solitary mechanism, aiming to prevent individuals from rousing from their slumber. Thus, they employ every conceivable stratagem to ensnare unsuspecting victims within the dream world's clutches. However, should their attempts at inducing sleep prove futile, they resort to a final desperate measure: corrupting their target. Should such a grievous outcome befall, Leo and Mira— the girl mentioned—find themselves compelled to eliminate the tainted soul."