In 2089, all human beings migrated to live under the sea. The ozone layer collapsed, nuclear radiation was severe, and no newborns were born. The human species was about to break off. 28 Pairs of volunteers entered the simulation warehouse to prepare for the birth of a baby.
In this closed, serious experiment, can there be mutual love or will we work hard for human survival?
Mission: Responsibility, human civilization, true love lasts forever