My Mind is Blown

Pack up neurosisnine Army, it's all over, this is the best thing any of us will ever see in our lives.  It's all down hill from here.

Here's the synopsis, "Deep in the forest lived Billy and his charming companions. They peacefully honed their bodies and listened to music there. But a wave of development came upon the forests. One who would turn all to road. Kagamine Rin had come. Billy must stop the construction before all is turned to road."