Zenitendo is a mysterious candy store that only lucky people can reach. All the candy recommended by Beniko, the owner of the store, is perfectly suited to the buyer's troubles. However, it depends on whether the candy will be used or eaten correctly that it can bring happiness or misfortune.

Shikada Kokonotsu's father owns a rural sweets shop, and his plan is 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 the famous sweets company, comes to pay a visit. Apparently, Kokonotsu's father is famous and she wants him to join her family's company. However, he will only agree if she can convince Kokonotsu to take over the family business!