Dagger: Yuushiki no Himemiko

In the battle known as the PreWar,
a demonic spell was cast to resurrect the fallen.
For one week only, they would live again.
In that remaining time, what would be thought,
and what could be done?

That moment of true death.
Love weighs heavier on the heart than ever.

The 3rd side story to the DAGGER saga.

[From DLsite English]