The Case In Which Streaming In Another World Led To The Creation Of A Massive Yandere Following is a Manga/Manhwa/Manhua in english language, SUGGESTIVE 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

Living in Ataraxia, a world of swords and magic, a reincarnated individual decided to make a living out of streaming. Living in a world where such a thing did not exist despite the many forms of entertainment, he quickly made a name for himself. This is not the tale of just a streamer… but of a boy who becomes a legend as a haishinsha.