The match effect is found here by interacting with the Matchstick Girl, an otherwise normal NPC. Another NPC that can be found here is a strange beaked animal who will curl up if interacted with. It will remain folded over until Usotsuki leaves; if she interacts with it again, it will tremble slightly. The head of the creature resembles a masked NPC in the White Plains.
A link to the Church can be found here by stepping on a drifting stained glass portal in the snow. A single brick wall contains a doorway to what appears to be a well with snow falling lightly down the center.