A story of the bonds between those who fight, in a world pushed to its limits. On one of the countless parallel worlds that exist throughout spacetime, humanity has fought a decades long war against the BETA, hostile extraterrestrial invaders, using humanoid fighting machines called Tactical Surface Fighters. This is a story of how humanity lives and dies while on the brink of extinction...

The world is ruled by spirits, goblins, and all manner of strange creatures. Human beings are persecuted, to the very point of extinction. One day, a golem and a lone human girl meet.

This is a record of the pair, one a member of a ruined race, the other a watchman of the forest. It tells of their travels together and of the bond between father and daughter.