Nationality: Russia Mars Ranking: Unknown Surgery Base: Belladonna (Atropa belladonna) Blood type: B Birthdate: February 18 (Aquarius) Elena Perepelkina is a Russian girl under Sylvester Asimov's tutelage that joined the Annex Project along with her brother, Ivan, to find a cure for the deadly A.E. virus that afflict the Earth. Being the exact opposite of her brother, Elena has a calm behavior, doesn't talk too much, is always serious and very self-confident. She has the best aim among the Annex 1 with the Terraformar net launcher. (Source: Terra Formars Wikia)