A shocking, pure love drama that transcends dimensions between a homeowner and a doorknob is born! Doorknob-chan, played by Kokomi Naruse, is a mysterious creature whose pussy is a keyhole. She waits every day from the bottom of her pussy for the homeowner to come home and insert the key. When he inserts the key, she squirts and climaxes every day! This masterpiece, a complete adaptation of a legendary doujinshi, will go down in AV history!