Nina Yamada is your typical 12 year old 7th grader who dreams about a boy who is strong, handsome, and kind enough to protect herself. One faithful day, Nina had "accidentally" swallowed a Crystal Pearl which she assumed was candy. But the Crystal Pearl was the goal of a sorcery examination, so Nina is the new Crystal Pearl to be targeted by many probationer sorcerers for half a year. It just so happened that within this whole mix up, she meets two wizard boys named Zero and Ichii and come to a conclusion that they would protect her until the potion was made to remove it from her. However, this potion will have to take about the entire 6 months of the exam. Protecting Nina wherever she goes...at school and at home. This is a romantic comedy shōjo manga warmed up by Zero & Ichii, the boys who protect Nina and their other rivals: examinees for the Magical Exam. Examinees like San & Forte, Go & Rokka, and so on.