The moment seven-year-old Lydia meets Douglas "for the first time", she remembers her memories of her previous life.
This world was very similar to the game that Lydia's previous life, Madoka Nanami, had played!
And Douglas is Madoka's favorite character...
Ten years after regaining her memories, Lydia struggles to make her favorite character happy, using the 50 million pendos she has worked and saved!