Nationality: Russian Mars Ranking: #10 Age: 16 Height: 173cm Weight: 73kg Surgery base: Datura stramonium Eye color: green Ivan Perepelkin is a Russian boy under Sylvester Asimov's tutelage who joined the Annex Project along his sister, Elena, to find a cure for the deadly A.E. virus that afflicts the Earth. He is introduced as an honest, albeit gullible, individual. He developed a crush on Sheila Levitt after she treated his wounds when he took a punch meant for Jet. (Source: Terra Formars Wikia)