I Received a Prophecy That My Fiancé Would Change His Mind

I received an anonymous letter. Enclosed is a prophecy that my friend, Lady Margaret has been possessed by the spirit of a ‘transmigrator’, and that she took over all the prominent bachelors of the empire, making a reverse harem. According to the prophecy, my fiancé, Carian, will betray me and confess his love to her… “You, if you cheat on me, I’ll kill you.” “…Are you obsessed with me? I’m so excited!” However, I cannot rely on will alone. It may be a prank letter but I took a few precautions just in case. I have to prevent the evil spirit who possessed my friend and protect my fiancé. “What’s this? A physical rights memorandum?” “Excuse me, Carian. If you look in this bracket, it’s ...