Liechtenstein sees them everywhere. In the mirrors, the windows, and in her nightmares. They want to get to the other side, and they won't stop trying till she lets them out. 2P!Parallel!World [Liecht/Multi]

Belarus x Liechtenstein fanfic (might be considered a one shot? I'm not sure)

Angel!Arthur is on a mission to send a rowdy group of demons back to Hell when he is captured and brought to the very place every angel is warned never to go. There, his soul is suposed to be eaten by the Demon King, but that doesn't happen. Demon-King!Alfred is too curious why the assumed human Arthur didn't beg for his life to end it.