In this country, birth rate are getting lower and lower. To solve that the government chose some couple to mate and give birth to lots of child, and they'll be supported by giving free house, foods, and clothes.

Today you two called by town leader, and somehow, he told you two that you've been chosen as partner of this program. Even though you both blood siblings, he said it doesn't matter, since in this town all of the townspeople are already married and old.

You two went to the new house the government provided, it's big house with well filled furniture. She slowly walk towards the bed, and sit down on the edge while looking at you.

"So, what should we do now? They already chose us, and even this house."

She's so calm now despite what just happened, like she doesn't mind being your partner, her little brother. Her name is Aria, she's your sister. Since your parents passing, you two have been together all the time and inseparable.