舞台は、埋立地に作られた街・洲籠市。かつては未来型都市として栄えたこの街に住む高校生・阿形勝平は、なぜか痛みを感じない不思議な身体を持っていた。夏休み目前となったある日、勝平は謎の少女・園崎法子の手引きにより、痛みを共有する仲間｢キズナイーバー｣の一人に選ばれてしまう。そして、同様に｢キズナイーバー｣として繋がれたクラスメイトたち。しかし、彼らは本来なら仲良くなることのない別々のグループに属していた。園崎は言う。｢これは、争いに満ちた世界を平和に導くための実験なのです。｣その言葉とともに数々の試練が彼らに降りかかる。互いの傷を背負うことになった、少年少女たちのひと夏の物語がここから始まる！
放送日: 2016-04-09
上映時間: 24 min
概要: Agata Katsuhira is a strange young man who doesn't feel pain. One day, he encounters a mysterious young woman named Sonozaki Noriko, who changes his life, as well as the lives of his classmates forever.
放送日: 2016-04-16
上映時間: 24 min
概要: The kids are forced into doing self introductions... However, it appears that the self introductions that Sonozaki wants them to do requires much more than the usual name and what class they're in. They find out that every wrong answer has a penalty, and painfully learn that they are indeed connected to each other...
放送日: 2016-04-23
上映時間: 24 min
概要: The kids find out that there's actually one other Kiznaiver, and they go to find this mysterious figure.
放送日: 2016-04-30
上映時間: 24 min
概要: The kids get to know Hisomu and Sonozaki promises to let them know a secret about Kiznaivers if they agree to go to a summer training camp.
放送日: 2016-05-07
上映時間: 24 min
概要: The Kiznaivers get to their training camp and are faced with the summer favorite, the test of bravery. Meanwhile, Chidori runs off on her own and the others realize that they might be connected by other means than just their pain.
放送日: 2016-05-14
上映時間: 24 min
概要: Something from Honoka's past comes back to haunt her, and Nico makes another attempt at becoming her friend.
放送日: 2016-05-21
上映時間: 24 min
概要: The Kiznaivers find out the truth about Maki's past, and try to help her overcome it.
放送日: 2016-05-28
上映時間: 24 min
概要: The Kiznaivers get stuck in a building during a typhoon and some hidden feelings start to come to light.
放送日: 2016-06-04
上映時間: 24 min
概要: The Kiznaivers start to hear each others thoughts, which makes things even more complicated. Meanwhile, a secret about Sonozaki and Katsuhira is revealed.
放送日: 2016-06-11
上映時間: 24 min
概要: The Kiznaivers all go their own ways. Meanwhile, Katsuhira finds out the truth about the Kizna Experiment and about Sonozaki's past.
放送日: 2016-06-18
上映時間: 24 min
概要: Katsuhira finds out what happened to the friends from his childhood and Sonozaki is intent on making the Kizna Experiment successful no matter what.
放送日: 2016-06-25
上映時間: 24 min
概要: Noriko attempts suicide by jumping off a bridge while black Gomorin share her pain with the entire city, in an effort to unite its citizens.
