Souridaijin no Eru Plus

Noeru is a 14 year old girl. She made a deal with a black cat named Mephi(Mephistopheles), and in that deal, she exchanged 30 years of her life for getting the Prime Minister's position. Once she got the position, she abused her power and implemented lots of crazy policies. She is a wild tomboy that, back in her school days, has spent time making fun of her boyfriend.