Sennou Shitsuji is a Manga/Manhwa/Manhua in english language, Comedy 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

When the daughter of the Takato family, Ichigo, returns from studying in the UK after a year, she notices a strange situation in her family. Apparently, they all seem to have been brainwashed by the butler, Seijuurou Kuki, who came while Ichigo was abroad. And so begins her efforts to return her family back to normal while desperately resisting Kuki's influence.