In the Hollow Night, monsters called Voids feed upon the power that manifests there, while those known as In-births use that same power for their own ends. While resting from her eternal labors in a nondescript town that the Princess of the Night Blade, Linne, meets a young boy named Hyde, who is in possession of the fabled sword of destiny that she has been searching far and wide for. Since time immemorial, the organization “Night Blade” has acted as guardians in what is known as the “Hollow Night”.
