Kagerou Daze, Vol. 8 (light novel) - Sidu Jin

It was a certain summer day when they met. It was a day that would go on for a long time...forever. As their enemies stood in their path, members of the Mekukashi-dan fell one after another. After temporarily stalling their opponents, Azami came up with a radical plan to seal them away, but it could only succeed at the cost of the life of one of their own... As their enemies began advancing again, what fate with the Mekukashi-dan choose...?