あたしの！

Akoko is straightforward and a bit of a goofball, Mitsuki is shrewd and calculating, and despite being complete opposites the two childhood friends are never more comfortable than when they are together. That balance tips when Akoko gets close to Naoki, the most popular boy at school, and both girls find themselves falling for him. Neither wants a boy to come between them, but neither is ready to back down either, and a rivalry between best friends begins.