Board Thread:Questions and Answers/@comment-14.169.21.247-20170923092547

So I'm looking for a song sung by Miku. The song is about a cat who is beckoned by a mysterious person and after that the cat arrive at a mansion. The mansion is filled with people who wear masks and in the end, it's revealed that there is a witch there who takes away people hearts to make them turn into living corspe and she gives those hearts to robots. The music is very catchy and video is a bit dark and gloomy.

That's all I remember, it was subbed by Hazuki no yume but their channel went down and now I can't find it. 