This is virtual reality. [ He doesn't know what that is - or rather, didn't before he got to this place - but some of the modern people seem surprisingly accustomed to it, so he figures it's the easiest way to start. It might make this kid go "oh" more easily than it would with Shinpachi himself, honestly. ]

Usually you just have to complete some task and then you're sent right out of it back to the normal world. [ "Normal".. relatively speaking.. ] Or it could be just as easy as finding the exit here.