Dark Blue Monomachia

After saving Marin, the residents of the tenement warmly welcome Melan. He tells them that he is a bio-weapon from Brigadoon, a world that has appeared in the sky, and that he is on a mission to protect Marin. 　The next day, Meran goes to clean up the mess at Nezu Shrine, where he finds his classmates Tanzen and Kazunobu smoking cigarettes.