Coffee Milk Candies, Young Donuts and...Kokonotsu Shikada wants to be a manga artist, but his father Yō forces him to inherit the family's dagashi shop. At that time, a beautiful and eccentric girl named Hotaru Shidare comes to their home and asks Yō to work at her family's candy developer. Yō refuses because he couldn't leave the shop if Kokonotsu doesn't want to inherit the shop. Thus, Hotaru decided to stay until Kokonotsu agreed to inherit the shop. Later, Kokonotsu meets the Endō twins - Tō and Saya - at their cafe and tells them about Hotaru without mentioning her name. Saya later meets Hotaru in person without knowing she's the one that Kokonotsu mentioned earlier.