Libra of the Vampire Princess: Lycoris & Aoi in The Promise Plus Iris in Homeworld

About

This visual novel expansion follows two standalone episodes set in the same vampire mythology as Libra of the Vampire Princess. The first story traces Lycoris's past as a Rubina agent, detailing her partnership with Aoi and a defining traumatic event that cemented their bond. The second chronicles Dernière, a world where energy-powered humans face collapse. You follow military leader Aconite, his deputy Iris, and a morally gray dollmaker as they battle a creeping existential threat. Choices influence relationships and perspective across both narratives, with branching dialogue and static visuals driving the experience. Both episodes dig into tragic backstories that deepen the main series’ lore. The prequel format offers context for character motivations without assuming prior knowledge. Kickstarter backers helped bring these tales to life, and the writing leans into slow-burn drama with occasional action beats. While the simulation elements are minimal, the character dynamics and worldbuilding have earned praise from existing fans. The episodes run separately but share a cohesive art style and thematic focus on sacrifice.

Storyline

"The Promise" Lycoris wasn’t always a dim-witted, scythe-swinging servant of darkness; she was a well-known agent in the Rubina: a holy organization of skilled monster fighters and vampire slayers. In this scenario, we go back in time and explore the circumstances of how she and Aoi came to be formally paired together as “buddies” in the Rubina. On a deeper level, we hone in on a particularly gruesome event that would come to shape their eternal love and respect for one another—a bond which can never be broken. "Homeworld" Dernière, one of the many worlds that exist in different dimensions. As holders of a special power known as "life force", Dernièreans were blessed with vast energy and extended lifespans, and they lived in glorious prosperity. However, even for them the day of ruin approaches. Taking place thousands of years before the events chronicled in Libra of the Vampire Princess, catch a glimpse of Dernière’s tragic history and the lives of those caught in the middle. You will meet Aconite Embroche, the determined leader of the Bebel’s sixth commando unit, and his smitten lieutenant, Iris Pumila. Together with Galega Officinalis, a lecherous and gifted dollmaker, they will use their superhuman powers to combat the infected life force from spreading and consuming their homeworld.