Harachigai no Ane ni Danzai Sarete Kyoujin ni Totsugimashita ga Shiawase desu (Associated Names)

‘Sophia, the daughter of a Marquess, is a villainess who seduced the Crown Prince, despite having a fiance already, and his close aide during her time in the academy. She did whatever she pleased and was banished by her half-sister, to be the bride of a Madman who lives in a remote region.’ While that…