Mihari Oyama (緒山 みはり) - Onimai: I'm Now Your Sister! (Oniichan wa Oshimai!) (お兄ちゃんはおしまい！)

mihari oyama, black hair, brown eyes, hair between eyes, hair ornament, hair ribbon, hairclip, medium hair, multicolored hair, purple hair, ribbon, streaked hair, twintails, two-tone hair, mature female, medium breasts, anime screencap