How to Build a Magnificent Nation Subarashiki Kokka no Kizukikata English Subbed

Based on the erotic doujin game by Iris Field (アイリスフィールド).

Ariadne just became the princess of the small country Avon. But already it’s in a deep financial crisis. In an effort to save the country she declares that Avon must focus on developing their sex industry.

(Source: DLsite, translated)