In AD 2031, humanity was slowly but surely sliding towards extinction, due to the assault of the mysterious crystalline entity "CE."

This is the story of a great hero who saved the Earth with the radiance of a holy sword — no, it is not.

It is the story of a lone spear-wielder, buried in the shadow of the hero, who traversed the darkness of history.

This story approaches the truth from the perspective of a supporting character, uncovering how the typical "overpowered harem protagonist" narrative was, in fact, riddled with conspiracy.

The general tone is that of a school battle story.

*Also cross-posted on "Kakuyomu."