Oyama Mihari Rule 34

Oyama Mihari is a character from the series Onii-chan wa Oshimai! She is a university researcher and the sister of Oyama Mahiro. Mihari is known for her scientific genius and her role in creating a drug that transforms her brother into a girl, which she does as part of her studies. She has short brown hair and brown eyes, and is often seen with a cheerful or mischievous smile. In fan art, Mihari is frequently depicted alongside her brother Mahiro and other characters such as Hozuki Momiji, Hozuki Kaede, and Oka Asahi. Artists often focus on her expressive face, her casual or lab attire, and her close relationship with Mahiro, capturing her playful and caring personality. Her interactions with the other girls are also a common theme in fan creations.