Arima Kousei won numerous piano competitions while under the strict watch of his mother. He was known as the human metronome during that time. Since the death of his mother, Kousei has been unable to hear the sound of his piano. He then meets Miyazono Kaori through childhood friend Sawabe Tsubaki. Kaori plays the violin and has a free sprit. Since meeting her, Kousei is able to face the piano again. Meanwhile, Kaori holds a secret.

Momoko is an ordinary girl, living an ordinary life. Ordinary, that is, if you define ordinary as wearing elaborate lolita dresses from the Rococo period in 18th Century France. However, when punk girl and self-styled 'Yanki' Ichiko comes calling, her days as 'ordinary' are most certainly numbered...

Yusaku Hayakawa dreams of becoming a detective, but works as a trainer for police dogs. When Yusaku gets an albino shepherd named Shiro, he forms a special bond with him. Everyone says that Shiro does not have the abilities to become a police dog, but Yusaku believes in him and trains him. When a terrorist act occurs, Shiro gets the chance to show what he has learned.

Ninagawa is a powerful man in Japanese politics and with top economic connections.His granddaughter is then murdered. The suspect is Kunihide Kiyomaru (Tatsuya Fujiwara). Kunihide Kiyomaru has a prior conviction for assaulting and killing a girl 8 years ago. The police could never apprehend the suspect in the prior killing.

The cyber crime investigation division at the Tokyo Metropolitan Police Department finds a video on website "YOURTUBE." In the video, a man covered by a newspaper, warns that a fire will be set at a food processing company. More crime notices are soon found involving violent crimes. Geitsu is the main guy behind the group "Shinbunshi," which has posted the videos. He used to work as a temporary employee at an IT company, but was unfairly dismissed. He then begins doing manual labor work and meets the other members of "Shinbushi."

The movie is set in the near future, when the “ARK Project” has initiated a program to increase the quality of human life through the peaceful use of robots. Dr. Komyoji, the chief scientist on the project, has developed a process to create a robot with a figurative human “heart” through the installation of a “conscience circuit”, but his plans are violently opposed by researcher Gilbert Kanzaki. When Dr. Komyoji is killed in an apparent accident, his children Masaru and Mitsuko are targeted by mysterious forces within the ARK Project looking to gain control of the scientist’s research data. But the villains are opposed by Jiro, the android with a human conscience who fights for justice as the hero Kikaider.

Tetsuaki's struggling to write a novel while his mother fades; Mitsuko's engagement has been forced upon her unwillingly; the two individuals run away to share their grief.