Seibetsu "Mona Lisa" no Kimi e.

Chapter 11: Just Like Usual
Chapter 10: Touch (Part 2)
Chapter 12: Only One
Chapter 10: Touch (Part 2)
Chapter 12: Only One
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...