Ian Gray is a PhD candidate in molecular biology, specializing in the evolution of the eye. At a party, he met a mysterious masked girl. With the memory of the girl's beautiful eyes, he found her and they fell in love. Although the two had completely different basic beliefs in life, it did not affect their relationship at all. Many years later, Ian and his experimental partner Karen made a far-reaching discovery. He had to leave his family and travel across the world to find the meaning of this new discovery.