Black Bullet, Vol. 7 (light novel)

The Akasaka Palace reception hall is playing host to asummit welcoming the leaders of Japan's five governmental Areas. The Seitenshi,host and head of Tokyo Area, greets her equivalents from Osaka, Sendai, Hakata,and Hokkaido, and few are willing to lend a sympathetic ear to her attempts atbrokering peace.The conference falls into chaos, the Seitenshi shocked thatsomeone leaked out a state secret. The fallout soon brings the two Areas downthe path to all-out war with each other--just as the Seitenshi vanishes from thepalace!