is a supernatural adult visual novel (nukige) developed by Ammolite and published in English by Shiravune and Kagura Games . Plot & Setting
: The game plays heavily on the contrasting archetypes of the protective older sister and the adoring younger sister, a staple of the sub-genre. Summary Review
: Unlike many titles in the genre that jump straight to the action, SISTERITUAL uses a dark, supernatural premise to drive the plot, framing the encounters as a "sacred duty" to save the land from decay.
: As a "nukige," the game is relatively short and focused, designed primarily for its romantic and explicit scenes rather than a sprawling, multi-route mystery like Fate/stay night or Steins;Gate .
If you enjoy visual novels with a heavy emphasis on "taboo" themes and a supernatural "shrine-maiden" aesthetic, SISTERITUAL is considered a high-production-value entry. However, if you are looking for a deep, philosophical narrative or complex gameplay mechanics, you may find the experience one-dimensional. SISTERITUAL - Jast USA