To understand the weight of Chapter 72, you have to remember the context. After the time skip from middle school to high school, the group’s dynamic shifted drastically. Sayaka Hoshino and Hikaru Suzuki—once the "it" couple—were separated by distance and misunderstandings.
After years of separation and Sayaka’s rise as an actress, the pair ultimately reunites. Their story ends with them fulfilling the "legend of the rooftop"—the place where they first met and fell in love.