Akuyaku Reijō ga Jitsuwa Kokoro ga Kireina yoi Musumedearu to Oredake ga Shitteiru (Associated Names)

The protagonist was reincarnated into an otome game as a first prince, he had played the otome game in his past life, and knew that the villainess was actually not evil and had lived an unlucky life. He searched for the route where the villainess was saved through all media, but he couldn’t find it…