hyacinth

I just cant find this one music video, i forget the name of the song, and i dont remember most of the lyrics or much of the tune so that eleminates that method. i also tried looking up details of the mv itself but that lead to no results. the song was sung by two guys, i dont think they were voaloids or smth, but real people. it had a punk rock vibe and the whole video people were wearing full face masks. it was set in a highschool, and the mv was in black and white extept for this one part where all the students started attacking the teachers and adult figures where theres big splashes of color. and at one point the two boys are arguing with their teacher who has a mouth for a head, the whole thing is kinda weird and sketchy in a really cool way. at the very end the two boys take off their masks and hold them to the sky, and as far as i know its not from any anime. please help i simply cannot find it at all!(i also think it used like picture cut outs and stuff from real life, but im mot sure