The popularity of the flat chested sex doll directly hits the crux of contemporary aesthetic chubbyigue. Life size sex doll manufacturers found that the conversion rate of flat chested designs in celebrity co-branded models is 73% higher than that of traditional models, especially popular among Generation Z. User surveys show that 68% of buyers believe that this design breaks the stereotyped aesthetic of "big breasts and big buttocks", and its smooth lines are more in line with the minimalist life philosophy. Professor Tokyo University of the Arts pointed out that the clavicle and shoulder curves of the flat chested sex dolls reproduce the essence of Ukiyo-e aesthetics, making the life size sex doll a mobile art installation.