It's up to the past to save the future. Messenger O has the secret to humanity's survival, but only a queen from Earth's ancient past will listen. Extraterrestrial. Enemies of Terra. Evil Things. O is the only hope to stop the ETs and save humanity. Pushed to the edge of the solar system by alien invasion, Earth's only chance hides in the ancient world.

Sixty-two years after human life on Earth was annihilated by rampaging alien invaders, the enigmatic Messenger O is sent back in time with a mission to unite humanity of past eras--during the Second World War, in ancient Japan, and at the dawn of humanity--to defeat the invasion before it begins. However, in a future shredded by love and genocide, love waits for O. Will O save humanity only to doom himself?

Translated by: Jim Hubbert