Board Thread:Questions and Answers/@comment-85.173.130.28-20180604202743

I remember listening it a long time ago, so I don't remember much from it, buut: Can't remember Vocaloid that was used for it, probably Miku. One thing that stands out for me is red text in the MV, overall idea is: There was a boy (?) who was abused by his parents and locked inside some room (?) He was screaming for help, like LET ME OUT or whatever, but died in the end. I also heard that this idea was based on a real japanese story, but idk if it's really true. And I clearly remember seeing fanart for this MV...Just now I'm in confusion, can't find it anywhere. Please help, if you know something about this song. 