Watashi Ha Akuyaku Reijorashinode, Lath Boss Wo Mederu Kakari Ni Naru Koto Ni Shimashita 1 (Three Zunoberu) [Light Novel]

[Machine Translation] Rosane, the "Iron Masked Daughter," has lost her face due to the abuse of her fiance, Oras. An incident triggered her memory of her previous life, and she remembered that Sylvain, the king's younger brother and the first magician, is a ruthless, cold-hearted, and black-hearted rascal, and that he was her favorite in her previous life. I don't care about my fiancee who is already in love with the baroness. If the engagement is going to be called off sooner or later, I'll be Sylvain's personal scullery maid... I'm going to be Sylvain's personal scullery maid...or rather, I'm going to be in charge of loving the rascal! I will not let my beloved be ruined. I will use all the secrets of Sylvain, future developments, and memories from my previous life to make him happy! Let's love, love, love him back, love him back, love him back, and make him useful too! This is the story of Roxanne, a former "Iron Masked Daughter" who is too devoted to her love, and Sylvain, the "Rust Boss" who is overwhelmed by her (but is actually on the verge of falling in love with her).

婚約者であるオラスにこき使われ表情を失った“鉄仮面令嬢”ロスサーヌ。ある事件をきっかけに前世の記憶が蘇った彼女は、王弟で筆頭魔術師の“慈愛の天使”シルヴァンの本性が冷酷冷徹な腹黒ラスボスであること―そして、前世の最推しであったことを思い出した。既に男爵令嬢へ恋をしている婚約者などどうでもいい。いずれ婚約破棄をされるのなら、シルヴァンの専属雑用係...もとい、ラスボスを愛でる係に着任します!最愛の彼を破滅なんてさせない。シルヴァンの秘密も今後の展開も、前世の記憶で使えるものは全部使ってラスボスを幸せにしてみせる!裏表が激しい彼を、愛でて、愛でて、愛でまくり、お役にも立ってみせましょう!これは推しに全力投球すぎる元“鉄仮面令嬢”ロクサーヌと、そんな彼女に押されて参っている(でも実は絆されかかっている)“ラスボス”シルヴァンの穏やかではない恋の物語。