20 centimeter boy (Mika OZAWA)

Looks like Kodomo, and there's Otona! The 6th video of the original Kokon experience. I was taken in by my neighbor's cute but tundele, and it was a big trouble for her. She tried to replace my pants that she had leaked. But I was very surprised to see my chin and kept touching it. "Do you know what it's like to be a woman?" and let me touch it, and when I grew up, I put her in my chin. I've often seen squirrels murmuring and getting bigger and bigger, or white things popping out. But what kind of study is this?