Main girl swallows fox's pill and they end up living together. Considering A Terrifying Cohabitation isn't out yet I can't really draw parallels, but the plot description is pretty similar. In The Life of the White Fox, the fox was holed away in a cave for almost 1000 years, and right before he was able to ascend, dramaland happened and somehow the main girl ends up with his pearl in her body. They end up living together and falling for one another as they attempt to get the pearl out.