A high fever at ten leaves Pia Rockwell remembering a past life as a Japanese grad student, and with it the otome game she has been reborn into as a timid background villainess. Its script ends with her engagement to the prime minister's son Rufus Stan broken off and Pia run out of the country. That suits her: she would rather live as a commoner, dig up fossils and open a museum on her old paleontology training. Then her sharp-witted fiancé offers her a wager. Based on the light novels.