Kono Manga no Heroine wa Morisaki Amane desu.  

Morisaki Amane is the heroine of this comic., このマンガのヒロインは守崎あまねです。, Morisaki Amane is a heroine of this comic.

Amane Morisaki is eager to take care of her younger childhood friend Kyousuke Aizumi, as they both enroll at the same university. But Kyousuke wants to become a mangaka and asks Amane to be the model for the heroine of his manga.(Source: Shogakukan, translated)