Blast of Tempest

絶園のテンペスト ～THE CIVILIZATION BLASTER～

The story centers around Yoshino, an ordinary high school student with a mysterious friend named Mahiro. Mahiro made a deal with a witch named Hakaze to hunt down the killers of his parents and sister. Now Mahiro is missing, and Hakaze confronts Yoshino. Yoshino find himself involved in crisis that may doom the entire world.