Sequel
63
78
74
In the psycho-suspense story, after a magnitude-7.8 earthquake hits Tokyo's Shibuya ward on November 6, 2009, a black fire spreads and causes mass panic on the day of the earthquake. The sudden disaster that becomes known as the "Shibuya Earthquake" kills 3,851 people and injures 30,927 more. A string of mysterious deaths occurs in Shibuya amidst the reconstruction. People begin to take notice as the strange events start on the same day that chaos broke out in Shibuya with a certain incident six years earlier. The events are called the "Return of the New Generation Madness." The manga version will follow Takuru Miyashiro and his friends as they try to uncover the mystery of what happened six years ago. (Source: Anime News Network)
Side Story
A second manga adaptation of the visual novel ChäoS;HEAd that focuses on Sena Aoi and Kozue Orihara.
Alternative
A third adaptation of the visual novel ChäoS;HEAd that begun serializing in Jive's shōnen manga magazine Comic Rush magazine on September 26, 2008.
Alternative
In 2019, childhood friends Yashio Kaito and Senomiya Akiho are in their last year of high school. Together, they are the only students in the robotics club, which has lost its school funding. Akiho is passionate about robots, and longs to complete building the robot her older sister Misaki began in this same club. Kaito doesn't really care about robots, and is obsessed with video games, specifically "Kill Ballad Online." However, he stays in the robotics club due to his friendship with Akiho. Now, just after Kaito is accused of cheating in his favorite game, Akiho decides to risk her club's existence in exchange for the funding to finally finish her sister's giant robot...
Cameo
Based on a fictional anime from the ChäoS;HEAd universe, starring the magical girl Seira Orgel as the heroine who fights aliens, along with fellow magical girl Erin-fray Orgel (her little sister) and the bounty hunter Sedna Février (her romantic rival).
Cameo
A romantic comedy spin-off of Chaos;Head, based on the 2010 visual novel of the same name. *Note: Includes 7 extra chapters.*