At the opening ceremony of the WSG (World Sports Games) Tokyo Games, a sports festival held once every four years, it is announced that the world's first vacuum superconducting maglev with a maximum speed of 1,000 kilometers per hour will open. While attracting attention from around the world, top executives of large companies are kidnapped from the party venue where WSG tournament sponsors gather. Conan moves toward a solution and eventually finds a connection with the WSG abduction case that occurred 15 years ago in Boston, USA.

Shibuya, Tokyo, is bustling with the Halloween season. A wedding is being held at Shibuya Hikarie, where Detective Miwako Sato of the Metropolitan Police Department is dressed in a wedding dress. While Conan and the other invited guests are watching, an assailant suddenly bursts in, and Detective Wataru Takagi, who was trying to protect Sato, is injured. Takagi survived and the situation was settled, but in Sato's eyes, the image of the grim reaper that she had seen when Detective Matsuda, the man she had been in love with, had been killed in a series of bombings three years ago, overlapped with Takagi's.

Ryo Saeba works the streets of Tokyo as the City Hunter. He's a "sweeper" and with his sidekick Kaori Makimura, he keeps the city clean. People hire the City Hunter to solve their dangerous problems, which he does with a Colt Python. When Ryo's not working on a case, he's working on getting the ladies, and Kaori must keep him in check with her trusty 10 kg hammer.

Keroppi in the classic tale of Jack and the Beanstalk.

Keroppi re-creates the story of Robin Hood.

The stage this time is Baquel Carnival! It's a fun festival held in Obake Town, a cute and fun city of ghosts that can be transformed into anything! Children truly enjoy the amusement park-like glamorous and exciting Baker Carnival. However, only the ghost boy Dolorin, who is not good at transforming, can not enjoy it, so he is alone. Such Dolorin deepens the bond while encountering Creampanda. They head to Ozomashi no Mori in search of the cloak that has the most transformational power in the world, but Baikinman appears there and rampages to mess up the Baker Carnival with the power of the cloak! Can Anpanman and others protect the fun Baker Carnival from Baikinman?

Keroppi version of The Three Musketeers.