Akuyaku Reijo no Ani ni Tensei Shimashita 2 [Light Novel]

[Machine Translation] In order to protect his sister Diana from the doomed end, Cain, a heir to the dukedom, sets out to create a strategy book. What he receives is an order from his father to study abroad. He can't bear to miss even a moment of his sister's growth! He is forced to leave for a neighboring country, despite his pleas that he cannot bear to miss even a single moment of his sister's growth. However, he finds himself sharing a dormitory room with the first prince, a womanizer who has tormented his sister by turning her into a princess in a branch of a girl's game scenario. Cain does not hesitate to make a move to break the doomed flag. Diana, on the other hand, is also trying to meet her brother, and starts to work on a plan of her own...? Dianna is also trying to meet her brother... "No matter how far apart we are, I'll protect your future! Dianna is also trying to meet her brother and has a plan of her own. In the changing seasons, the siblings challenge each other with a promise in their hearts! A full love fantasy that avoids destruction! Includes 4 newly written extra stories and an extra manga at the end of the book, "The Wizard Who Turned into a Rainbow" & extra manga!

悪役令嬢(になるはずの)妹ディアーナを破滅エンドから守るため、攻略本作りに乗り出す公爵家嫡男・カイン。そんな彼に届いたのは、父からの留学命令だった。『妹の成長を一瞬でも見逃すなんて、耐えられない!』という訴えも虚しく、隣国の地を踏むことに。だが、寮で同室になったのは乙女ゲームシナリオの分岐で妹を側姫にして苦しめる、女たらしの第一王子!?カインは迷わず、破滅フラグをへし折るために動いていく。一方、ディアーナも兄に会おうと、ある計画へと勝手に動き出し...?「どんなに離れようとも、君の未来は俺が守る!」「ディは、お兄さまが大好きですのよ!」移ろいゆく季節のなか、約束を胸に兄妹が挑む!破滅回避のフルラブ・ファンタジー!書き下ろし番外編4本&巻末おまけ「虹になった魔法使い」&おまけ漫画を豪華収録!