Influenced by Japan's unique aesthetic concept of "the part is the whole," sex doll torsos have become a visual symbol that condenses desire. Compared to full-body dolls, the design that removes the limbs and head actually strengthens the symbolic expression of the body. Many users believe that this aesthetic of incompleteness stimulates imagination and avoids the "uncanny valley effect" caused by facial features. For those deeply influenced by anime culture, sex doll torsos are often seen as an abstract art installation, whose very existence speaks to Japan's unique understanding of "the beauty of incompleteness."