Average young girl Kazuki Suou lived a peaceful life with older brother Masaki. That is, until she met Shirou Kusanagi, a boy with secret knowledge of her past, and the dark contract Kazuki was a part of in a...

Eraser, the mysterious enemy that invaded Earth 13 years ago!! Before their overwhelming power, the entire Earth neared the verge of collapse. But at the last moment there suddenly appeared Earth's lone savior,...