A restaurant romance simulation set in the dark realm, Abyss. Abyss is a shadowy world where strange beings dwell. One day, you are guided here by an unexpected force, and you begin operating a restaurant for the residents of the Abyss. 1. Prepare dishes for the residents of the Abyss. Cook meals, take orders, and observe the residents’ expressions. Little by little, their hidden stories begin to reveal themselves. 2. Explore the maps to gather ingredients and recipes. By traveling through various areas, you can collect the ingredients and recipes needed to run your restaurant. At times, you may have unexpected encounters with the strange residents of the Abyss. 3. Build relationships with the residents of the Abyss. You may grow closer to the Abyss residents who visit your restaurant. Through conversation, you might discover unexpected sides of them. 4. Experience 19 different endings. Abyss Bistro features 19 multi-endings, including common endings and character-specific endings. It takes about two hours to reach a single ending, and multiple playthroughs are recommended to fully understand the story.