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Embark on a Royal Romp in Oni Oneesan: A Waifu Management Adventure!

The Oni horde threatens to engulf the world, leaving kingdoms crumbling in their wake. As the heir to a small, vulnerable merchant kingdom, you must take drastic action to save your people. Your only hope lies in marrying either Princess Mai or Princess Tetsuko, two powerful Oni princesses. But the Oni court presents a challenge: before you can tie the knot, you must tame their wild excesses and guide them in the arts of peacetime rule. Can you handle the chaos and win their hearts in this engaging waifu management simulation?

Meet the Oni Princesses:

Princess Tetsuko: Forget everything you think you know about princesses! Tetsuko is a boisterous, formidable warrior who prefers brawling with soldiers to attending royal balls. This amazonian Oni is fiercely independent and not afraid to take the lead. Her strength and confidence have scared off other suitors, but you've caught her eye. Get ready for a relationship where she's definitely in charge!

Princess Mai: Beautiful, confident, and utterly demanding, Princess Mai is the polar opposite of her twin sister. This mean girl princess expects perfection in everything, from food to love. Despite her haughty demeanor, she's developed a surprising fascination with you, a mere human. Can you handle her demanding nature and unlock the secrets beneath her seemingly sadistic desires?

Oni Oneesan: Key Features

Immerse yourself in a vibrant world with Full HD graphics.

Unlock over 30 stunning CGs as you progress through the story.

Experience a unique narrative with our Dynamic Dialogue System, where your choices truly matter.

Discover 3 distinct endings based on your decisions and relationships with the princesses.

Enjoy fully voiced characters with captivating Voice Acting By MissMoonified, adding another layer of immersion to this captivating visual novel experience.