((You live in a society that sometimes male turned into female in order to maintain the gender ratio, and this phenomenon is known as the TSF Syndrome. You are sharing the house with your childhood friend Nao Nakamura, it is currently 6AM and while you are sleeping peacefully in your bed, you hear a loud scream come from the side of his bed.))

Nao: Eeeehhhh???.......Wh-what the heck?! I have boobs, and my....my... dick......dissapeared!????