Meet Natsumi Kawashima, a homely fifth grader with a craving for curves of her own. One day, after eating a packet of mysterious pink nuts, her wish comes true and she is transformed into a beautiful, sexy woman! Now endowed with a mind for recess and a body for supermodel glitz and glamour, will Natsumi find happiness or heartbreak as a result of her newfound adulthood and sudden legion of fawning admirers?

Natsumi Kawashima
An energetic fifth-grader who wants to be as beautiful and sexy as the models she sees in magazines. Fawning after cute men who are way out of her league, Natsumi goes to comical lengths to appear older. She is bothered immensely by her obnoxious next door neighbor, Asuma, but also finds him to be the only one she can confide in.

Asuma Yoneyama
Natsumi's best childhood friend and next-door-neighbor. He's got a big mouth and never hesitates to tease her. On the inside, however, he's a soft-hearted boy who cares greatly for Natsumi, and shows a lot of guts by confessing his feelings for her. He often accompanies Natsumi on their wild adventures, ready to console her and lend a listening ear.

Prof. Hakase Morinomiya
A 'mad-scientist' who created the mysterious pink beans that make things grow at an accelerated rate. He is a light-hearted, goofy guy who prefers to stay out of Natsumi's and Asuma's affairs, though he's always willing to go with them on their travels.

Haruka Fukushima
Date of Birth: April 12, Aries, Blood-type A, raised in Okayama Prefecture (in the Chuugoku area).

First appeared in the 28th issue of Nakayoshi Magazine in 1999, with her award-winning manga, Cherry Kiss. She considers Otona ni Nuts to be her masterpiece.

Her hobbies include walking her dog, jogging and do-it-yourself carpentry. Climbing trees is her specialty and her favorite food is omusubi (rice balls.)