Ep 8. The Monument On the Border

The episode titled "The Monument On the Border" follows the continuing investigation into the Gastrea virus outbreak and the attempts to create a cure. Rentaro and Enju, along with their comrades, are deployed to the front lines where they encounter a strange monument that is causing concern among the local population.

As they arrive at the site, they discover that the monument is created by a man named Sumire who is believed to have perished during the Gastrea virus outbreak. Seeing that she is alive, Rentaro and Enju try to stop her from continuing her experiments on the monument. They learn that Sumire has been researching the Gastrea virus and is trying to create a vaccine to prevent its spread in the world.

As the investigation progresses, it becomes clear that Sumire's motives are not entirely altruistic. Her ultimate goal is to destroy the Gastrea virus using any means necessary and she is willing to risk the lives of Rentaro, Enju, and their comrades to achieve her goal.

Meanwhile, Rentaro and Enju are also grappling with their feelings towards each other. They both have grown to care for each other deeply, but they know that their relationship is complicated by their roles as Cursed Children and members of the Civil Security Corp.

Overall, "The Monument On the Border" is a tense and action-packed episode that further reveals the complexity of the world in which Rentaro and Enju live. It explores the boundaries of scientific experimentation and the ethics of pursuing a cure for a deadly virus, while also delving into the emotional turmoil of its main characters. The episode sets up a compelling arc for the rest of the season, with a looming threat that will need to be addressed in the coming episodes.