A shock awaits Yuito and company as they confront Karen at the mausoleum. Will they be able to convince you to help? Yuito and Kasane deal with their regrets about what happened to Nagi and Naomi, and must take drastic measures in an attempt to save the world.

Yuito begins a new journey, and Kasane is tasked with a new mission. Promotions and new challenges await their comrades. But as they each go their separate ways, will anyone remember Karen's sacrifice or that he even existed?