Challenge yourself while being chased by fear! A horror puzzle action adventure! A completely new version of the legendary horror game "Ao Oni"! [What is the new "blue tragedy" unfolding at the abandoned hot spring?] The once-popular hot spring inn known for its "beauty-enhancing hot spring" is now a ruin. There was a rumor that it was haunted. Hiroshi, Takeshi, Mika, and Takuro visit the abandoned hot spring inn to record “Mika Channel” and encounter a “suspicious man” and “Ai” there... What is the Blueberry Hot Spring found in the abandoned inn, and what awaits them in its deepest depths...? Can Hiroshi and the others escape safely? Many new systems have been added! There are many new elements such as conversations with characters, cooperative play with friends, and a chat function. In addition, many new species of blue demons appear! There is even a monster in the form of a humanoid dog...? The fastest game ever! 16x speed mode” has been added! In “High Speed Mode” you can freely choose between 2x and 16x speed! Can you escape from the "Ao Oni" chasing you at high speed? Online ranking function added! Participate in online ranking by your score when you clear the game! Play quickly and without mistakes, and aim for a high score!