Chiyomaru Shikura

Kurisu has returned to Akihabara after a year in America. Meanwhile, Okabe begins to have images of other timelines, and ultimately disappears from everyone's sights and memories. Kurisu must fight against her own heart to decide whether to follow the path of a scientist and follow Okabe's words to not go back in time to get him back, or let her emotions drive her to save her most precious person, no matter what dangerous effects it may have on the world. (animenewsnetwork.com)

After discovering time travel, a university student and his colleagues must use their knowledge of it to stop an evil organization and their diabolical plans. (imdb)

An alternate ending to Steins;Gate that leads with the eccentric mad scientist Okabe, struggling to recover from a failed attempt at rescuing Kurisu. He decides to give up and abandons his lively scientist alter ego, in pursuit to forget the past. (imdb)

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. (ANN)

Six years following the events of Chaos:Head, a new string of deaths similar to the New-Gen murders have started up in the newly rebuilt Shibuya area. These incidents have taken the attention of a Highschooler: Takuru Miyashiro, and the newspaper club. Investigating the incidents of the present as well as their connection to the events of the New-Gen Crimes Takuru and his friends find themselves being pulled deeper into the incidents than they ever believed possible. (ANN)

Silent Sky is a combination of the additional episodes 13 and 14. It consists of the story in the future, three months after the incident that was similar to "New Generation Madness" and the disease Chaos Child Syndrome that brought by the past earthquake in Shibuya. (myanimelist)

This "paranormal science" story follows nine idiosyncratic individuals, linked by the "Choujou Kagaku Kirikiri Basara" occult summary blog run by 17-year-old second-year high school student...

Akiho and Kaito are the only two members of Central Tanegashima High's Robot Club—but maybe not for long. The powers that be are threatening to shut the organization down. If Akiho and Kaito want the club to survive, they’ll need to win the upcoming hobby robot competition in Tokyo. With everything on the line, Akiho and Kaito devise an awesomely bold plan: build a giant fighting robot! (tv.apple.com)