The story begins with Conan and Ran invited by Sonoko's sister to see the autumn scene. They met with Sonoko's sister, Ayako, along with some of his old friends. On the way to the villa, they saw a man wrapped in a strange fabric in a dark robe across the bridge.
In the evening, Chikako is kidnapped by a man wrapped in a cloth into a forest. His friends tried to follow the man's direction into the woods. However, they find Chikako already killed with Chikako's severed arms and legs. A friend tried to bring Chikako's body, but even more surprising, it turned his head off! Moreover, the cruelty of this murder does not stop here. The killer brings his victim's arms and legs into his bag and brings his head piece into his clothes! How does it feel to carry pieces of the human body?
And yes, with the exception of the forgotten author, the incident in volume 5 manga remains one of the severest murders in Detective Conan. Most murder cases in new volume manga usually present a cleaner murder, between drowned, slashed, or shot. Not until mutilated terrible like here.