Seibetsu "Mona Lisa" no Kimi e.

Chapter 14: "Touch and Agitation"
Chapter 13: A Pleasantly Unpleasant Thing
Chapter 15: Chicken or Egg
Chapter 13: A Pleasantly Unpleasant Thing
Chapter 15: Chicken or Egg
In this world, when human beings reach the age of 12, their bodies gradually change to the genders they wish to be. And by the time they are 14 years old, their appearances change to reflect their genders. But by spring of my eighteenth year, I am still without a gender...