Misaka 10032 (ミサカ10032号 Misaka Ichiman Sanjūni-gō) is the 10032nd clone of Mikoto Misaka. She was first introduced in Toaru Majutsu no Index and plays a relatively small role in Toaru Kagaku no Railgun. Originally supposed to be killed in the 10032 experiment against Accelerator as part of the Level 6 Shift Project, she becomes the most prominent clone in the series after being rescued by Touma Kamijou , and is referred as Misaka Imouto (御坂妹 Misaka Imōto, lit. "Misaka's little sister") whenever they meet.