Doubt!!

is a Japanese shōjo manga series written and illustrated by Kaneyoshi Izumi. The story follows Ai Maekawa, a teenager who gives herself a total makeover during a school break in a bid to reinvent her image and become popular. It was serialized in Shogakukan's Bessatsu Shōjo Comic magazine from the March 2000 issue to the July 2002 issue. Shogakukan collected the individual chapters into six bound volumes under the Flower Comics imprint. Viz Media licensed the series for an English-language release in North America.