Plot - Chaos Head
Chaos;Head's story is set in 2008 in Shibuya and is centered around Takumi Nishijō, a high school student at the private Suimei Academy, and the strange events that have recently occurred in the Shibuya area. The two main events being referenced by the media and the public at large are referred as the "New Generation" (ニュージェネレーション?) events. The first event, called the "Group Dive" (集団ダイブ?), occurred on September 7 when five high school students jumped to their deaths off of a high tower. The second event, called the "Pregnant Man" (妊娠男, Ninshin Otoko?), occurred on September 19 when a male university student was found dead with a thirty-two week old fetus incised within his abdomen.
The story begins on September 28 with Takumi talking to an online friend called Grim (グリム, Gurimu?). Grim is trying to bring Takumi up to speed about the recent New Generation events since Takumi is not interested in local or international news. A person named Shōgun (将軍?) joins the chat room midway through Grim and Takumi's conversation, but he does not respond despite being greeted by both Grim and Takumi. Grim sends Takumi a poorly drawn image of a person getting stabbed with several stakes, jokingly claiming that it's an image of the murder before leaving the chat room.
After Grim leaves the chat room, Shōgun finally starts to talk. He sends Takumi a barrage of several realistic image links, with the stakes pinned as in Shōgun's, depicting a murder. The next day, as Takumi was heading home after spending the afternoon at an internet cafe, he comes across the same scene that he witnessed yesterday in Shōgun's pictures. He sees a male body nailed to the wall as well as a pink-haired girl dressed in a Suimei Academy uniform, covered in blood. Takumi runs away screaming as soon as he comes to his senses over the situation at hand. The story progresses from here with Takumi trying to avoid getting involved with Shōgun and other New Generation events as he is slowly caught in a grander scheme's wheels of motion.
