Masked Knight Will Never Deceive The Villainess is a Manga/Manhwa/Manhua in english language, REINCARNATION 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

Can the ex-otaku villainess resist the perilous temptation coming from her beloved character, who happens to be her own killer?!