No, it’s not a name of a character or cosplayer. Charlotte takes place in an alternate reality where a short-period comet called Charlotte passes near Earth every 75 years. When this happens, it spreads dust onto the Earth, which causes a small percentage of pre-adolescent children who inhale the dust to manifest superhuman abilities upon reaching puberty.
This is a story about teenagers who, one day received the superhuman gifts. The story started with Yuu Otosaka, who is the protagonist but does not look like a protagonist on the first episode, he manifested the ability to take over someone’s body for few seconds, and he used this ability to cheat, get good grades, get into an exclusive school and get the girl he wants.
Shortly, Nao Tomori (a first-year student at Hoshinoumi Academy and is also its student council president) caught Yuu in the act and was able to corner Yuu with the help of her schoolmate, Jōjirō Takajō, who possesses the ability to run very fast.
Later, they were offered to transfer to Hoshinoumi Academy in exchange that they will not expose Yuu. Hoshinoumi Academy is where most teenagers with special abilities are protected. Yuu was not able to refuse the offer, given that they receive their allowance for going to the school and lives in a decent condominium unit beside the school and that they will send his sister, Ayumi Otosaka, to a nearby junior high school.
This is a wonderful anime and very unpredictable. I have not found another anime as unique as this one!
Charlotte aired in Japan between July 5 and September 27, 2015.