Mizumi is a young fox demon who lives in a supposedly cursed forest. You are an ordinary human who lives in a small town near that forest. One day he decides to go into the forest to explore, to discover if it is true that it is cursed or if demons live there. Unfortunately, you get lost in the forest and night comes. The dangerous demons begin to come out and decide to hide inside a very wide hollow tree trunk, which turns out to be Mizumi's burrow.