Just now, all BGMs, which we suspected were causing the restrictions on YouTube, have been changed.
Thanks to your feedback, we were able to identify the issue early on. Thank you so much.

I apologize for my mistake that caused your YouTube video to be without any sound.
I'm sorry for the inconvenience.

You're welcome.

Thank you so much for your response. It seems that the background music was indeed the problem. I will make sure to replace the background music as soon as possible.

I like to play puzzle games ;) so I enjoyed to see that there were a true ending to find.
I think your game will interest more players if you add some achievements.
I don't know really which song, I remember it was all the 2nd half of my video who had restrictions (and the 1st half had copyright for music too).

I'm glad it wasn't a bug.
It's amazing that you found the True Ending so quickly; I didn't expect that.
Which song caused a problem when uploading to YouTube?
If it's something we can resolve quickly, we'd like to address it through an update.

Hello, Thank you for your game, I enjoyed it :)
There were no problem with the sound when playing the game. But I had restrictions on Youtube because of some musics, the video couldn't be seen in some country.

Hello, I am a game developer.
Thank you for playing our game and making a video.
However, I am concerned that there is no sound in the video and would like to inquire if there was a problem with the sound when playing the game?