Akuyaku Reijou wa Ouji no Honshou (Dekiai) wo Shiranai

In a meeting with Prince Dylan, Bertia suddenly recalls her previous life and realizes that she has been reincarnated as the villain's daughter in an otome game. Just as she thought to distance herself from the Prince in order to avoid the bad ending, she was chosen as his fiancee. "I won't let the prince have a sad childhood!” It's only 5 years until the lonely prince meets the heroine. She is a temporary fiance, but she decides to become a friend and support him until then. But as things get along smoothly, the skinship of the prince gets intense!? "I love you so much." I'm not the heroine, but I'm being doted on?! (Source: Kadokawa, translated)