Mato Seihei no Slave 2

After the clash with the humanoid Shuuki, Yuuki Wakura's battles are no longer simply part of his duties as the Seventh Squad's caretaker and Kyouka Uzen's combat slave. Learning that his sister Aoba is still alive has made the conflict inside Mato deeply personal, while raising far more dangerous questions about the enemy and what lies beyond the gates.

As the threat grows, the commanders of the Demon Defense Force gather, bringing together some of Japan's most formidable fighters. Yuuki is pulled into a new level of power, rivalry, and responsibility while his transformations with Kyouka continue to evolve in unexpected ways. Protecting the human world and finding a path back to Aoba now draw him deeper into a war he can no longer treat as someone else's fight.