in order to approach the mystery of the strange disease 'acquired feminization syndrome' where a man changes into a woman's body, we interviewed a former man who is said to have developed feminization syndrome. he is a drummer in an alternative rock band called "nosnos (ex. Nostalgia's Nest)" that is active in Tokyo. it seems that his physical characteristics have changed significantly due to feminization, and he is troubled because he can no longer play the drums as he wants. to confirm that, we palpate his legs and breasts, and have sex to check the sensitivity of his vagina.