Shikada Kokonotsu's father owns a rural sweets shop, and he plans for Kokonotsu to take it over one day. However, Kokonotsu wants to be a manga author instead! One day in summer the cute but weird girl Shidare Hotaru, from a famous sweets company, comes to pay a visit. Apparently, Kokonotsu's father is famous and she wants him to join her family's company; he will only agree if she can convince Kokonotsu to take over the family business though.