After launching the game, I am unable to advance to the next step on the main screen.
After launching the game and being prompted to start the game, the game does not respond to any keyboard button presses.

The BGM plays normally, so I don't think the game is frozen. The same thing happens when I click with the mouse.

The start button is said to be the space-bar, but when I press it, it doesn't advance to the next step.

Does anyone have a solution?