Humanity, having faced extinction at the end of the 20th century, would not have entered the new millennium if it weren’t for them. In 1969, during their youth, they created a symbol. In 1997, as the comin...

Yori Iwatani is close to her 40s and is giving up on love and marriage. She has decided to live a quiet solitary life in her hometown. But when a handsome former classmate appears, things change for her.

The absolutely lucky boy Hare Shikazono is selected to participate in a scientific pregnancy experiment where he lives with four girls and is ‘required’ to sleep with them. The members of the new househo...