Oyako Rankan The Animation

Depending on the eroge by Alice Soft.

In a village, deep in high altitude over beaten track, lies a residence using a headman called Kojiro. Secrets on this house have been ostensibly hidden. The village may be plagued by low birth rate for some time, and as a method to eliminate it, the village was given women from your Kamishiro family from the headman. Therefore was referred to as the "Feast." The protagonist, Mamoru, and the "onee-chan," Kotone, were the sole survivors of a giant fire ten years prior. Homeless, we were holding drawn in by the Kamishiro family. However, Kotone was taken in since the eldest daughter, and Mamoru has turned into a servant. The "Feast" was soon upon them, and the decission was taken that Kotone be utilized. Kotone accepts this, as a result of responsibility she gets for the family and Mamoru. Mamoru, well isn't information with the feast cooperates from it beyond necessity ...but.