Jishou Akuyaku Reijou na Konyakusha no Kansatsu Kiroku.

For a natural genius like Crown Prince Cecil Glow Alfostar, every day is a bore. Knowledge and skills come far too easily for him, to the point that nothing can captivate his interest. However, this changes the day he meets someone who never fails to betray his expectations—his fiancée and self-proclaimed villainess Bertia Evil Nochesse. Bertia claims that this world is that of an "otome game." She has been reborn as the villainess, and it is her duty to impede the relationship between Cecil an...