Buta Hime-sama(2011)

Buta Hime-sama is an adult anime OVA set in the peaceful kingdom of Istoare, which faces invasion by a ruthless orc army. Desperate to save her people from destruction, Queen Ilena makes a devastating political choice: she agrees to marry the invading king. The series explores the dark consequences of this arrangement as the queen navigates her new role in a hostile court. Adapted from an Orcsoft doujin game, Buta Hime-sama blends fantasy worldbuilding with mature themes of sacrifice, power, and survival. The story examines how far a ruler will go to protect her nation, even at the cost of her own freedom and dignity.