Turning Into A Tentacle Monster, Made Me Crazier 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.cc fastest updating comic site. The Summary is

For unknown reasons, Xiao Zheng would transform into a tentacle monster when he became excited. Even if he longed for love, he would disguise himself as being cold. But suddenly he was summoned by Bai Anan, who was usually serious but secretly loved drawing. He signed an agreement and became Bai Anan’s “familiar”. He was threatened to help her – to draw the Manhua that would top the list!