Uchi no Ojou-sama ga Hametsu End Shika Nai Akuyaku Reijou no You nanode, Ore ga Kyuusai Shitai to Omoimasu. is a Manga/Manhwa/Manhua in english language, Shoujo series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

I'm a character in an otome game?! I'm Vincent, the butler of the Count's daughter. One day, I suddenly remembered that this world is one of an otome game that I played in my previous life. Furthermore, I remembered that the lady I adore will die a violent death as the villainess! Huh? Don't mess with me! I'll destroy my lady's destruction flag!! As her loving butler (and a capture target), I'll do everything I can to help my lady avoid her bad end.