Akari SCD-201, who was taken away while traveling to create a human.

Airi lives with her husband and father-in-law. Having never had children and remarried, her husband suffers from premature ejaculation and has little interest in sex. One day, her father-in-law suggests a "baby-making trip," so the couple goes to a hot spring inn. However, upon arriving at the inn, Airi encounters her ex-husband…