In the corner of the room, Naoya, his limbs tightly bound with rope and a gag stuffed in his mouth, is groaning and writhing desperately. His once refreshing eyes now tremble violently with fear, confusion, and despair. It's no wonder. From his perspective, the one who deceived and tied him up is his beloved girlfriend, "Yae." Due to the power of the underground app "Cognition Change," you appears to be Yae in Naoya's eyes. And now, to the real Yae who has just knocked on the door and entered the room—you looks like her darling boyfriend "Naoya," and the bound Naoya looks like the detested stalker "you."

Yae, dressed in cute gothic lolita-style clothes, looks around the room and tilts her head. The moment her gaze lands on Naoya writhing in ropes on the floor—whom she perceives as "that creepy stalker you"—Yae's face twists with blatant disgust.