Nebel Geisterjäger ~ The First Lamb

About this game

Some of the game's extra content can be found by clicking on "Visit the website" in the right hand column of this page.

Game Features

This title offers a male-centric NTRPG experience.
Unlike traditional NTR games that narrate from a female perspective, players utilize various methods like heartbeat monitoring, phone calls, surveillance cameras, and questioning bystanders to gather information, aiming to protect their girlfriend from a nefarious boss.
Their unpredictable fate is unknown, just like any living human being. Change your actions depending on the situation, come up with a strategy, and enjoy the thrilling battle.
Events depicted from various perspectives such as tweets, images and videos uploaded on SNS, and dreams may change drastically depending on the progress of the game.
Pure love route is also possible! There is a chance to redeem the situation before she is completely stolen.
This game has five hidden endings depending on the choices made, with replayability. Can you really protect her until the end?

Story

The protagonist Tsukasa Sakurai and Kana Kashiwazaki were recently hired as full-time employees of Nebel Tokyo Branch, a globally renowned company in paranormal research and development. However, they were suddenly transferred to a remote town called Sara and assigned to a long-term exorcism mission. To make matters worse, their notorious boss also joined the mission as a support member.

Sara was the place where a strange incident that shook the nation 12 years ago originated. To purify the endless calamities and revive this desolate town, the truth that has been hidden for 12 years must be uncovered.

The story of their exorcism journey begins now with these three people...

Game Mechanics

・ Multiple Large Exploration Maps.
・ Innovative Interactive Camera System.
・ Unpredictable adversaries requiring constant vigilance.
・ Rich event branching and numerical management systems.
・ Dual hidden storylines.

Game System

The game flow is divided into two parts: the daytime part, "Exorcism," and the nighttime part, "Event".

In the daytime exocrism, players are forced to separate from Kana. Making each room safe and placing items in advance to accommodate her actions will reduce the difficulty of her side.

If Kana fails... Lawrence will not miss this great opportunity.

During the night, you will be free to act on your own. You can go out to dinner with Kana, meet up in the park for donuts, or intentionally fail to keep your promises.

Naturally, Lawrence is also trying to get his hands on Kana.
If you don't notice the SOS sign from Kana or don't get there in time...

Latest news

• Announcements·21 Nov 2025Official

  Fallen Priestess: My Sister’s Demonic Bloodline is now available to purchase!

  {STEAM_CLAN_IMAGE}/44021791/5c345a8d3b71005867194f7e18ea2fc914e3cfd5.png We’re overjoyed to announce the official release of Fallen Priestess: My Sister’s Demonic Bloodline, developed by BBQ大好! The game is available right now, with a special 20% off launch discount! https://store.steampowered.com/app/3111930/Fallen_Priestess_My_Sisters_Demonic_Bloodline/ Trailer: Embark on a thrilling quest to defeat the Demon King and save Trina from the curse of her demon blood. Protect her from those who seek to corrupt and steal her from you. Conquer dungeons, battle dangerous foes, and master unique Synthesis skills in this intense adventure! More from us: https://store.steampowered.com/app/3070610/Magical_Princess_Lily/ https://store.steampowered.com/app/3070600/Senpai_and_the_Mysterious_Island/ https://store.steampowered.com/app/2924660/Fault__Broken_Promises/ https://store.steampowered.com/app/2693410/The_Reason_for_Your_Smile/ You can also find us on: Steam Publisher Page Saikey Steam Community Saikey Studios Website Twitter Discord Youtube
  Read full article on Community Announcements (Saikey)

• Announcements·1 Nov 2025Official

  The Reason for your Smile is now available to purchase!

  We’re overjoyed to announce the official release of The Reason for your Smile, developed by Jinsei Tsukoudome! The game is available right now, with a special 20% off launch discount! Trailer: A visual novel telling the story of Shun Kousaka, a college student starting into a new chapter of his life. Experience and decide his journey through the perils of love as you work towards achieving his biggest dream: Getting a girlfriend! More from us: You can also find us on:Steam Publisher PageSaikey Steam CommunitySaikey Studios WebsiteTwitterDiscordYoutube
  Read full article on Community Announcements (Saikey)

• Announcements·7 Sept 2025Official

  The Part 2 of Nebel Geisterjäger Movie Is Now Available!

  We’re excited to announce the release of the Motion Animation of Nebel Geisterjäger PArt 2! Get it exclusively on the Saikey Store now! https://saikeystudios.com/product/nebel-geisterjager-animated-movie-part-2/ More from us:You can also find us on:Steam Publisher Page Saikey Steam Community Saikey Studios Website Twitter Discord Youtube
  Read full article on Community Announcements (Saikey)

• Announcements·7 Jun 2025Official

  Living with my Little Sister is now available to purchase!

  {STEAM_CLAN_IMAGE}/44021791/1c1f45fa604f409e84e6c19b7c378121429597ba.png We’re overjoyed to announce the official release of Living with my Little Sister, developed by Ero Flash Club! The game is available right now, with a special 20% off launch discount! https://store.steampowered.com/app/3478020/Living_with_my_Little_Sister/ Trailer: Your truant younger sister decided to crash at your place. Improve your relationship by spending time with her while balancing your job as an illustrator. Give her a head pat, cook for her, have a chat, and maybe, over time, she'll open up to you. More from us: https://store.steampowered.com/app/1477770/Shokuo_Shoujo/ https://store.steampowered.com/app/3070620/Ninja_Ordinance/ https://store.steampowered.com/app/3031150/Secret_Hot_Springs_Girl/ https://store.steampowered.com/app/3070600/Senpai_and_the_Mysterious_Island/ You can also find us on: Steam Publisher Page Saikey Steam Community Saikey Studios Website Twitter Discord Youtube
  Read full article on Community Announcements (Saikey)

• Announcements·2 May 2025Official

  The Motion Animation of Nebel Geisterjäger Is Now Available!

  We’re excited to announce the release of the Motion Animation of Nebel Geisterjäger! Get it exclusively on the Saikey Store now! https://saikeystudios.com/product/nebel-geisterjager-animated-movie/ More from us: https://store.steampowered.com/app/3111930/Fallen_Priestess_My_Sisters_Demonic_Bloodline/ https://store.steampowered.com/app/2924660/Fault__Broken_Promises/ https://store.steampowered.com/app/3536260/Dyed_in_White/ https://store.steampowered.com/app/2919130/Countdown_to_NTR/ You can also find us on: Steam Publisher Page Saikey Steam Community Saikey Studios Website Twitter Discord Youtube
  Read full article on Community Announcements (Saikey)