Steins;Gate

Self-proclaimed mad scientist Okabe Rintarou lives in a small room in Akihabara, where he invents "future gadgets" with fellow lab members Shiina Mayuri, his air-headed childhood friend, and Hashida Itaru, an otaku hacker. The three pass the time by tinkering with their latest creation, a "Phone Microwave" that can be controlled through text messages. The lab members soon face a string of mysterious incidents that lead to a game-changing discovery: the Phone Microwave can send emails to the past and thus alter history. Adapted from the critically acclaimed visual novel by 5pb. and Nitroplus, Steins;Gate takes Okabe to the depths of scientific theory and human despair as he faces the dire consequences of changing the past.

Ringing Fate

A Gan is seriously ill, and falls into a world called "Kong" at the moment of dying. Here, people can drive mechas to fight in the ring of fate, and the winner could get a chance to live again. By coincidence, A Gan partners with Zhang San, an evil mecha with a soul, and begins her adventure in "Kong".

Tokyo Revengers

Takemichi Hanagaki is a freelancer that's reached the absolute pits of despair in his life. He finds out that the only girlfriend he ever had in his life that he dated in middle school, Hinata Tachibana, had been killed by the ruthless Tokyo Manji Gang. The day after hearing about her death, he's standing on the station platform and ends up being pushed over onto the tracks by a herd of people. He closes his eyes thinking he's about to die, but when he opens his eyes back up, he somehow had gone back in time 12 years. Now that he's back living the best days of his life, Takemichi decides to get revenge on his life by saving his girlfriend and changing himself that he'd been running away from. (Source: Crunchyroll)