"Do what now?" Magnus asks, going on an entire mental image journey of Hanguang-jun grinding and shredding on a rail. Hanguang-jun would probably kick ass on a skateboard, is the thing, but he's fairly certain that this is a different kind of grinding (and it's probably not a dancing kind of grind, either, though he's willing to try out an ink dance, so that the ink rains will arrive, if he has to).