The train they board is a mysterious train driven by "Denden," the spirit of the train.This is a new type of work in which active VTubers/VSingers appear as "themselves".The virtual existence of the "Den-Den" makes it possible for them to do "anything and everything", but it is the opposite of that, the talk is very human.A short animation that will make you laugh with its mix of "aru aru" and unbelievable developments.