Nagazaki, a scientist researching human clones, was conducting an experiment to have a child between a human and a cloned human through sexual intercourse. A male subject was tasked with mating with "Yukine," a cloned human created with his own DNA, and although he knew it was a dangerous research project, he went ahead and had sex with her as instructed. After intercourse, the male was somewhat dissatisfied and commented that "the warmth of skin between a clone and a human is different," and to prove this, he also had sex with Nagazaki. This is the record of an experiment between a cloned human and one man.