Fuutarou Uesugi is a poor, antisocial ace student who one day meets the rich transfer student Itsuki Nakano. They argue but when Uesugi realizes he is to be her tutor, he tries to get on better terms. While trying to do so he meets four other girls.
When five lovely young girls who hate studying hire part-time tutor Futaro, he guides not only their education but also their hearts. Time spent has brought them all closer, with feelings growing within the girls and Futaro. As they finish their third year of high school and their last school festival approaches, they set their sights on what’s next. Is there a future with one of them and Futaro?
These small girls are ready to make it big! All 12 or younger and under 149 centimeters tall (4'11"), these aspiring pop idols dream of performing for thousands of people. But with zero experience, they've got a lot of work to do! With the help of their rookie producer, who's almost just as short, can they stay focused and make it to the top?
