The story focuses on Rin Okumura, a boy raised by a famous exorcist named Father Fujimoto. After an argument between the two, Rin discovers he is the son of Satan. Rin decides to fight his fate y joining the True Cross Academy to become an exorcist and defeat demons. However, when he draws his father's sword, it releases a dark power within him.
Takumi is a high school student. He is withdrawn and is not interested in 3D things. In his town, a mysterious serial murder case happens and people get panicked. One day, when he chats on the internet, a man suddenly contacts him and gives him an URL. He goes to the website and finds a blog image that suggests a next murder case.... On the next day, it really happens.... Takumi Nishij? suffers from intense delusions as a result of his apparent schizophrenia and the extremely secluded lifestyle he lives as a hikkikomori. One day he accidentally stumbles upon a gruesome murder scene, a part of a chain of events called "New Generation." After this, his life gets caught up in these events, and he meets a bunch of increasingly insane anime girls with swords.
Steins;Gate is set in the summer of 2010, approximately one year after the events that took place in Chaos;Head, in Akihabara. Steins;Gate is about a group of friends who have customized their microwave into a device that can send text messages to the past. As they perform different experiments, an organization named SERN who has been doing their own research on time travel tracks them down and now the characters have to find a way to avoid being captured by them.