This story takes place 100 days before Kudo Shinichi became Edogawa Conan. Kudo Shinichi, a high school detective, arrives in Jugoya Town with Mori Ran and others. In this town a legend exists, claiming that a gigantic bull-headed shrike attacks the townspeople and kills them. The town was about to hold a festival in 3 days to put the giant bird's spirit to rest. While being led on a tour of the bull-headed shrike Shrine by Sonoko's parent's friend, Mr. Wakura, a crime related to the legend occurs. Starting with Kosaka, member of the Wakura family are slowly murdered in the same way...

Murakami Naoki is the most intelligent student at his high school, but he can't stop obsessing over a girl named Mizuno Haruka. He finally asks her out, and to his surprise, she accepts. After several months of a loving yet obviously doomed romance, it comes time for them to take the entrance exams for Tokyo University. What will happen to their relationship if only one of them is accepted?