Katsuhira Agata is a reserved teenage boy who has lost his ability to feel pain. His friend Chidori Takashiro barely remembers life before this change, and Katsuhira's complacent demeanor makes him an easy target for bullies. Although they can only hurt him physically, emotions remain beyond his grasp.
One day, Katsuhira, Chidori, and four other teenagers are kidnapped and forced to join the Kizuna System as official "Kiznaivers." These individuals share a connection through pain: if one member is injured, the others will feel an equal amount of agony. As lab rats and scapegoats for an incomplete system designed with world peace in mind, they must reveal their true selves to each other or risk failing the Kizuna System.
A beautiful girl who lacks human kindness and displays no emotion whatsoever. She acts as the arbitrator for the Kizuna Program....
Hisomu has been described as a masochist, meaning he becomes aroused when feeling or thinking about pain. He can also be quite childish and blunt at times, though, after he is introduced, his personal...
In essence, Chidori appears to be uncoordinated, expressive, and sometimes boisterous. Her genuine concern for her fellow Kiznaivers is particularly evident towards her longtime companion, Katsuhira A...
It seems that Niko is lively and full of energy, frequently providing amusing commentary. When encountering novel situations, she may become quite animated or exaggerated in her reactions. Additionall...
The protagonist's emotions are numbed, making them seem unfeeling and indifferent towards all situations, including joy or pain. They appear oblivious to their own feelings as well as those of others,...
Yuta is a reserved individual who takes a strategic approach to situations. He values academic excellence and has a penchant for attractiveness. In class, he comes across as charming and self-assured,...
Hajime is the Muscle-Headed Thug, and is a school delinquent. He is portrayed as reckless, but tries his best to help others....
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Ruru was a close friend of honokas deceased partner "charles de macking," who passed away from terminal kidney disease. they were known as the mangaka duo for their work together in creating comics. d...
Mutsumi is the counselor of the school. Shes a mysterious woman whos almost always seen wearing a white coat....
Katsuhiras chemistry teacher for Class 2-A is described as carefree, uninterested in personal lives of students, apathetic, lacking motivation to work hard, interested only in Bishoujo style games and...