I'm a Wolf, but I Won't Harm You is a Manga/Manhwa/Manhua in english language, Manhwa series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

A sheep was born into the political family of lions, the well-known Leopardi Family?! ‘Lucy, your grandmother from the eighth descent was a sheep…’ Lucy has lived a lonely life among her carnivorous blood relatives with no one to lean on. As usual, she begins playing by herself at a social gathering but is suddenly approached by Roman, a wolf with ears pricking through his shiny, silver hair. But one day, Roman’s secret leaves her with a great sense of betrayal! “Hey, I thought you were a dog?! A dog!” Can the two’s fates, which cannot be achieved, be made?