薬膳ヤク
Character from [[Kimi no Koto ga Dai Dai Dai Dai Daisuki na 100-nin no Kanojo]]. [[Aijou Rentarou]]'s sixteenth girlfriend, and [[Yakuzen Kusuri]]'s grandmother.

She is actually 89 years old, but looks very young due to a failed immortality drug.
yakuzen yaku