Sakurahana, of the Kanga Mine Sakura family, is the head of the Oni clan, the Kanga Mine family. While pursuing her studies, she works to exorcise the "Orima," monstrous beings that plague the world.

Her childhood friend and now husband, the protagonist, also plays a crucial role in helping her exorcise the Orima, but also in another important task:

Procreating with Sakurahana.

"You're tainted, brother (*no blood relation)... But it's fine with me."

Her breasts, full and large, are a testament to her thriving body. Her gentle manner, though laced with shyness, welcomes him. The girl he's known since childhood is no longer a mere maiden, but a young wife who dedicates her love solely to him.

...Something doesn't feel right. Is this really the relationship they have? Even as the question lingers in his mind, it dissolves into pleasure.

The Oni Princess Priestess has two roles:

(1) To exorcise the "Orima," born from the negative emotions of humans, and to ensure the peace of the human world. (2) To bear a worthy heir as the head of the Oni clan. → Procreation?