Wealthy heiress Catarina Claes is hit in the head with a rock and recovers the memories of her past life. It turns out the world she lives in is the world of the game Fortune Lover, an otome game she was obsessed with in her past life... but she's been cast as the villain character who tries to foil the protagonist's romances!

For a lonely orphan, there is almost only one career path to success. That is to get a national qualification as an alchemist. After graduating from the Royal Alchemist Training Academy, which requires nothing but ability, Sarasa is presented with the rights to a store by her master. After being sent off by her generous mentor, Sarasa sets off on her journey, dreaming of a slightly elegant life as an alchemist, but upon arrival, she is shocked to find that the countryside is even more rural than she had imagined. However, even in such a place, she has to manage a store somehow to make a living.

Endo and Kobayashi love to bicker about their latest video game fixation. They think they're simply providing color commentary, but one of the game's characters, Siegwald, can hear them talking about his fiancée, the villainess Lieselotte!