Fallen Priestess: My Sister's Demonic Bloodline

About this game

Latest news

• Patch Notes·29 Apr 2026Official

  Huge update with lots of new content! (v1.3+)

  This DLC update adds a total of 16 updated scenes, including expanded endings, additional Stage 3 sister content, a new sweet scene with the brother, extra Villa events, and the full implementation of the Inn system. While the Inn system is simple to play, it includes many variations based on NPC states and conditions, which made testing and debugging take much longer than expected. This is the main reason the DLC was delayed, and we sincerely apologize for the wait. In addition to the new scenes, this update also fixes several smaller bugs that had built up over time. We are also adding a new sprite costume-lock feature, allowing players to keep the sister’s outfit set to their preferred style. Costume options will unlock as the game progresses. Enjoy!
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• Announcements·17 Feb 2026Official

  Elena's Story is now available to wishlist!

  Hello, everyone! We’re delighted to reveal our next upcoming release: Elena's Story！ https://store.steampowered.com/app/3694000/Elenas_Story_The_Vaalbara_Chronicle/ Play as Elena in this isometric hand drawn RPG game. Captured by a brutal, sadistic race of demi-humans you shall attempt to escape from their dungeon. Should you enjoy our games, consider joining us on Discord and following our Steam Publisher Page for all the latest news from Saikey Studios! More from us: https://store.steampowered.com/app/3238940/A_Simple_Life_with_My_Unobtrusive_Sister/ https://store.steampowered.com/app/3644610/My_Summer_Vacation/ https://store.steampowered.com/app/4260530/Rinas_Undercover_Train_Operation/ https://store.steampowered.com/app/4260270/Stranded_with_You/ You can also find us on: Steam Publisher Page Saikey Steam Community Saikey Studios Website Twitter Discord Youtube This announcement was brought to you with much love from Saikey Studios. Have a great day!
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• Patch Notes·12 Dec 2025Official

  The game has sold more than 40000 copies! (Update v1.1.0)

  Hello everyone, BBQ here with some good news as Christmas approaches! We've been fixing bugs nonstop for quite a while, and to be honest, it really drained my energy. But starting today, I can finally share something a bit brighter! First of all, thank you so much for your support and purchases. In less than a month, we’ve reached 40,000 total sales. While it may not be an extraordinary number, the sales of Priestess have allowed BBQ to confidently move forward with our new title for 2026! As a token of our gratitude, BBQ is currently working on a free DLC for everyone. We plan to release it around February–March, so please remember to update your game and give it another play when it comes out! More details about the DLC will be announced gradually in upcoming posts. At the same time, development on our new title has already begun, and the programming work for our new FPS game has resumed as well. We’ll do our best to meet your expectations again in 2026! Update v1.1.0 Changelog:Fixed an issue where three mini scenes in the villa could not be played correctly.Fixed a bug where Kana might appear in an incorrect location.Fixed the elite monsters in the forest not respawning properly.Fixed the Emerald Dragon not respawning properly.Fixed an issue where skipping the first ritual prevented the villa storyline from progressing.Fixed a bug in the Church Phase 3 events where the next scene would not trigger unless the player had already watched specific scenes,and another bug where watching scenes early in the Memory Room would prevent prerequisite events from triggering.Fixed misplaced trigger positions for the “Memory Crystal” in Church Phase 3 events.Fixed an issue where watching the sister’s Phase 3 event in the Memory Room first made Phase 1–2 pure-love scenes unviewable.Fixed abnormal changes to the sister’s awakening stage after watching certain memories.Fixed an issue where choosing “Cancel” in the Memory Room still triggered a pixel scene.Fixed a bug where the sis...
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• Patch Notes·7 Dec 2025Official

  Update v1.0.9

  \Added a confirmation prompt in the Reminiscence Room. We apologize for the delay; it was previously difficult to add large amounts of text due to translation-related challenges.\Fixed bugs where Hstatus was not being tallied correctly, data was not updating in real time, and certain stats were calculated incorrectly.Fixed a bug where stains on the sister's body in the Hstatus interface were miscalculated, causing them to persist indefinitely.Adjusted the stain cleaning calculation. Old stains will no longer remain for more than two days.Adjusted the threshold for uterine visual changes and the decay rate of semen volume. Players can now visually track the changes in semen volume more intuitively.Fixed a bug where the "Test Fire" event was triggered incorrectly when starting a New Game+, and the corresponding quest could not proceed. Interacting with the NPC again will now allow the quest to proceed normally.Fixed a bug where some events in the villa would remain stuck in the brother's perspective. Re-watching the event once will fix it, and subsequent viewings will correctly use the sister's perspective.Fixed a bug where several mini-events in the villa would loop indefinitely.Fixed a bug where one of the debt repayment events in the villa was linked to the wrong H-scene.Fixed a bug that allowed the stealth minigame to be started at an incorrect time.Fixed a bug where the sister would still go to work at the casino after paying off the debt, even without meeting the specific conditions. This can be fixed by simply loading the save file.Fixed a bug in the English and Korean versions where stockings could not be changed.Fixed terrain/tile issues in the forest.Fixed a rare bug where players could still exit the Reminiscence Room after reaching an ending.Fixed a bug where crew members (backstage staff) would occasionally be visible on the map.Fixed an issue where brass bullets could not be fired.Refined the prompt text that appears when trying to take a part-time job i...
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• Patch Notes·3 Dec 2025Official

  Update v1.0.8

  Version 1.0.8 Changelog:Fixed a bug where the villa would be empty at noon.Fixed a bug in the Prince battle where armor resurrection was effective for all party members.Fixed a bug where the firearm trial mission could end abnormally and the blue-print was not awarded correctly. Blueprints will be reissued to players who have already completed this mission.Fixed a bug where the enemy respawn mechanism only triggered once when the player entered or exited a map, causing spawns not to be calculated correctly by date.Fixed a bug where an extra "Asahi Dream Sand" would be consumed during a quest.Fixed a bug where, under specific conditions, party formation movement would not re-enable correctly after being disabled.Fixed a bug where it was possible to enter the villa storyline after obtaining the "Demon-Slaying Broken Sword" under certain extreme circumstances.Fixed a bug in NG+ where quest items were unintentionally carried over, causing story skips.Fixed some unreachable areas on certain maps and adjusted the positions of some dialogue triggers.Fixed an issue where, under some extreme conditions, the player could appear in an abnormal position after returning to the villa.Other minor optimizations and bug fixes.Regards BBQ大好き and Saikey Studios Team
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