One day, an otaku high school student Aki Tomoya has a fateful encounter with a girl amidst the beautiful cherry blossom trees. This meeting inspires Tomoya to design his very own gal-game (dating-simulation video game) featuring a heroine modelled after the girl he saw. In order to make his desire a reality, Tomoya must persuade a few eccentric creators such as the ace member of the art club, Sawamura Spencer Eriri and the school's top student, Kasumigaoka Utaha to join his development team. Meanwhile, Tomoya is shocked to learn that the girl he idolized as his muse for this whole project was none other than his boring classmate, Katou Megumi! But, this does not dissuade Tomoya. He is determined to give Megumi a total make-over within his game and raise her to be the absolute girlfriend that every man desires...!

[Source: Aniplex]