My name is Hana Kamijou. I'm 15. I’m living a normal life. I'm an only child. My father and mother live far from here because of work. I live with my grandmother at home. My daily routine is just going to school and playing video games. I don't really get along at school or in my neighborhood. Th...

A thousand years ago, the Earth was attacked by monsters. Destruction, death, and sorrow were everywhere. The war had taken a heavy toll on both sides. All kinds of monsters from the monster planet were sent to Earth. Devastated by the war, humans had to restart their civilization. They then made...