Steins;Gate

Rintarô Okabe is a somewhat paranoid scientist, always accompanied by Mayuri and Itaru, who help him with his outlandish experiments for his laboratory. While attending a seminar on time travel, Rintarô meets Kurisu, who tries to persuade him that he had spoken to her fifteen minutes earlier, but Rintarô has no recollection of it and doesn't remember seeing the girl. Shortly after, he discovers Kurisu's lifeless body. Attempting to warn Itaru by text message, he finds himself plunged into a ghost town. Regaining his senses, he finds Mayuri and doesn't understand what happened, especially since in the meantime a satellite has crashed into the building he was in. Rintarô's confusion will deepen even further when he learns that the text message he had sent to Itaru is a week old, and that Kurisu is still alive.

-Blaster-
source: Animeka