In this chapter, we learn that Hiroyuki is now a student at the same school as Kiyoshi, and that Kiyoshi is now engaged to Hiroyuki's younger sister, Nino. Nino is now the boyfriend of Nino's classmate, Kiyoshi's dying friend, and is also a student in the same hospital as Nino and Kiyoshi when they were both in high school. Kiyoshi and Nino have been friends since childhood, and they have been inseparable ever since