In Chapter 1, Kiibo was worried alongside everyone else about what it would mean about the first motive, anyone who committed the first killing will graduate without holding a trial, effectively calling it a "First Blood Perk". Kiibo expressed panic, as he was worrying a murder would happen very quickly. Aside from Kaito Momota, the Ultimate Astronaut, who became increasingly outraged with Monokuma for doing whatever he wanted and lunged at him. After the first trial, Kiibo told Kaito what he was supposed to do before he hit Shuichi. After which, Kiibo expressed concern for Kaito.
In Chapter 5, as planned, K1-B0 and everyone else gathered in the gymnasium at nighttime, with Kaito bringing a vast assortment of weapons from Maki’s Research Lab. Under any normal circumstance, Kiibo is against violence. However, he was so angered at the killing game he joined Kaito is attempting to kill Monokuma. When that supposed missing person arrives riding an Exisal and supposedly pretended to be Kaito before "revealing" themselves as Kokichi, K1-B0, along with everyone else, believes that Kaito must have been the victim until later on in the trial, where the voice coming out of the Exisal changed to match Kaito's again. Kiibo had to be convinced by Shuichi that it was Kokichi in the Exisal and not Kaito.
When Kaito has gone missing, Kiibo, along with everyone else in the class, was extremely depressed and despaired, implying Kaito was Kiibo's only motivation to even perform basic actions. However, at the end of Kaito's trial, Kaito reassured everyone to smile, send him off in style, and that he won't accept their tears before proudly accepting his execution. As he chose to die on his own terms and not Monokuma's. During his execution, however, a bit of rubble was kicked up, knocking off K1-B0's "connector" to the outside world, making him unable him to hear the audience's voice, causing him to malfunction. The malfunction caused him to become extremely violent, losing his empathy, ability to critically think, and made him attempt to destroy the school.
This section is in need of major improvement. Please help improve this article by editing it. Cyberspace is a less popular pairing on the Danganronpa community. There is only 11 works of it on AO3, but there is 222 works of it on Wattpad. Cyberspace is defined as a "rarepair", or an unpopular ship. The tumblr tag for it only has 10 works. Most of the fan content are fanfictions of the ship.
- Kaito and Kiibo are the first male characters introduced in the Danganronpa V3 promo
- Kaito and Kiibo are on Shuichi’s team at Scrum Debate in Chapters 1 and 2