Otome Game no Ateuma Akuyaku Reijou wa, Outaishi Denka no Shiawase wo Negaimasu!

Lady Elizaveta von Alvaheim has memories from her previous life. And that's because she remembers the details from the otome game she was hooked on. Her favorite character, The Crown Prince, His Highness Prince Klaus, is her betrothed. To complete his good ending route, she acts as the villain to the heroine, Alice Eimert. But because of her caring nature and nobility, Elizaveta ends up being adored by Alice...Will Elizaveta be able to bring Klaus happiness in the end? (Source: MangaPlaza)