Following her marriage to Cecil, Bertia accepts a request from her new friend, Princess Lisolna Umyurbe, to help organize her own wedding to the prince of a neighbouring country. However, when Bertia begins to notice that something seems oddly familiar about her new friend and her upcoming marriage, Prince Cecil's suspicions are raised. NOTE: This is a direct sequel to An Observation Record of my Fiancée - A Self-Proclaimed Villainess.