The thing that Hoshino Akizuki regrets the most is that he tried the holographic game newly developed by his sister!
What about the promised crime-solving mystery game? What's in this card pool?
The broken tooth knife, the bloodline of beating the enemy, Fu Jiang's skills?
Hoshino Akizuki didn't know much about these unscientific things, but they were familiar to her. She was 100% certain that her sister, who loves two-dimensional things, had mixed it up when designing the game!
The good news is that this is just a game, the bad news is that if you get stuck with bugs and don't clear the level, you can't return to reality.
So - come on! Hoshino-kun!
Concept: The world is not black and white