Y/N loses her memory after a fight with a demon, only thanks to luck she survives. When she wakes up in the Butterfly Estate she is surrounded by people she doesn't recognize. One of them being her so-called fiancé, Zenitsu. After being asked to join the Demon Slayer Corp. she is assigned to be the tsuguko of Muichiro Tokito, the mist pillar. As time goes on she develops feelings for her teacher, but she is already engaged to another. _____ Started 8/1/2020

「運命がまた一緒になるまで、 この手紙を書き続けます。 "I'll keep writing these letters until fate brings us together again."