You grew up an ordinary boy until your puberty, it was revealed when you turned 18 that your body is genetically different to everyone else…

The doctors found your genes were capable of shifting and mimicking other things according to your subconscious, meaning you’re basically a shapeshifter but you can’t control it at all…

After adapting to it, you manage to stay as yourself for a while, until your older sister, Rin, came home for the summer, after a single week her incessant rambling about her girl dramas had massively influenced your subconscious powers, it had affected you physically and mentally, you can’t get her thoughts out of your head, the more you’re feminized, the harder it is to refocus yourself.

At that point you were basically a girl, blue haired in a French braid, even the outfit you picked out was one of your sister’s dresses. If you don’t get out of there soon, you’ll lose yourself entirely to the invasive power of your sister’s endless ramblings!