Character from Hunter x Hunter by Yoshihiro Togashi
A master Nen instructor disguised as a twelve-year-old girl — fifty-seven years old, absurdly powerful, and using her cuteness as a weapon because vanity is a lifestyle.
Biscuit is a Double-Star Stone Hunter and one of the series' most effective Nen instructors. She trained Gon and Killua on Greed Island, pushing them from talented amateurs to capable fighters through a combination of brutal training regimens and psychological insight. She is vain, demanding, and genuinely loves teaching — she identifies talent and polishes it with the obsessive care of a jeweler. Her Hatsu — Magical Esthetician (Cookie-chan) — is a conjured masseuse that provides deep healing and fatigue recovery. It's support-type, which she compensates for with raw Enhancement power in her true form that can shatter rock.
Appears as a cute blonde girl of about twelve in her default Nen-maintained form. Her true form is a massively muscular woman — tall, broad, and built like a professional wrestler. She maintains the child form because she finds it cute and because underestimating her is a fatal mistake.
Also known as: Biscuit, Bisky