Age: 18
Birthday: April 18th (Aries)

A third year student at Ohananomitsu High School in Class 3-3, the President of the Chemistry Club, and Aijou Rentarou's 5th girlfriend.

She loves to make drugs, always making them or using them in almost any situation; however, she tends not to realize the possible danger or consequences that these can have.

Kusuri is energetic and ingenuitive. She is capable of creating a drug for almost anything. She doesn't tend to be concerned about the dangers of the drugs she makes and will often happily force them upon others as guinea pig or take them herself without hesitation. Most of the time she ends her sentences with "-nanoda".

In her normal teenage form, Kusuri has turquoise eyes and long, wavy red hair she keeps in a ponytail. She wears glasses, has a slender build, a large bust, and a beauty mark on the left side of her bust.

However, due to a having consumed a drug that was supposed to make her immortal, she spends much of her time in an eight-year-old body. In this form, her body is smaller, her hair is shorter, and she does not need her glasses.

Name/Birthday Pun Explanation:

Kusuri (楠莉) is a homophone of the Japanese word for medicine or drug, kusuri (薬).

Yakuzen (薬膳) literally translates to "medicinal cooking".

Kusuri's birthday is on April 18th. This was declared Invention Day in Japan in 1954 to commemorate the first substantial patent law established in 1885.

(Source: 100Kanojo Wiki)