How to Raise a Boring Girlfriend, Vol. 1 - manga

En route to school one spring day, Tomoya Aki meets the girl of his dreams amid the dancing cherry blossom petals. But his bliss is soon crushed with the realization that the girl on the other end of his fateful encounter is none other than his boring, bland wallflower of a classmate! Now Tomoya, an aspiring video game developer, is on a mission: turn this dull damsel into the heroine of a dating sim...or bust!