You Knew Very Well That Your Romantic Feelings Might Be Unrequited, Right?.The Kiznaivers decide not to keep in touch until the next school year begins, due to being able to sense each other's inner sorrows, as to which all their Kizna scars have disappeared. After Yamada starts his class with discreet humiliation for the Kiznaivers, this encourages Nico to reconnect with Katsuhira and Yoshiharu. Noriko attempts a suicidal jump from the roof in a drastic bid for proof of the results of the Kizna System, and Katsuhira's remaining Kizna scar reacts to her. Katsuhira, Nico and Yoshiharu find the passage into the underground subway station, meeting up with Urushibara, who says that Noriko only fell unconscious. Urushibara further explains that Katsuhira and Noriko were among nineteen test subjects during the first Kiznaiver experiment twelve years ago. Noriko received the full force of the pain rather than the pain being evenly distributed among the others. She began taking medicine to numb her senses, which affected the other children as well, including Katsuhira. When Katsuhira finds five other children who were released twelve years ago, childhood memories pour out of him as they look at him with still faces.