STORY

How can people love each other in a world where “sex” has disappeared?
As a child, Amane is horrified to discover that her parents had sex to conceive her, instead of using artificial insemination, which has become the norm in the mid-twentieth century. She struggles to resist her mother’s insistence that married couples should conceive through sex—a belief considered taboo in this society—yet her infatuations with both anime characters and real people carry an undeniable sexual intensity.
Now an adult in a deliberately sexless marriage—sex between spouses is regarded as taboo as incest—Amane and her husband, Saku, move to a mysterious new town called Experiment City, or Paradise-Eden. Here, all children are raised communally, every adult is considered a “Mother” to all children, and men can become pregnant through artificial insemination procedures. Children are nameless, referred to only as “Kodomo-chan.”
Amane and Saku both initially succeed in becoming pregnant through the procedure, but Amane suffers a miscarriage, leaving only Saku to give birth, becoming the first man to do so. Defying Eden’s rules, Amane wishes to raise Saku’s child together with him, and her mental state gradually begins to unravel.
Will this radical new world finally purify Amane of her “strangeness,” or reveal even deeper desires?