Synthetic biology is rewriting the definition of new sex dolls. The University of Tokyo injected engineered cells into a silicone matrix to create a torso sex doll with basic metabolic functions. This "semi-living body" secretes natural sebum and can even perform limited photosynthesis. According to the data from the Ethical Review Committee, 57% of the subjects have moral confusion about this type of new sex dolls, but the medical community is optimistic about its application prospects-the customized version for diabetic patients can monitor blood sugar in real time and deliver insulin through skin contact. This technological leap is subverting the industrial attributes of traditional torso sex dolls.