As night falls on their unexpected discovery in the woods, Seiya and her friends begin to explore the mansion's eerie corridors. Soon, mysterious events lead to the gradual disappearance of several members of their party, leaving the survivors in a state of panic. They attempt to uncover the secrets of their surroundings but find themselves increasingly entangled in the web spun by the enigmatic Black Widow. Her presence promises thrills that blur the lines between pleasure and peril, drawing them deeper into intrigue and fear.