Kinuhata Saiai (絹旗 最愛 Kinuhata Saiai?) is a character introduced in the Toaru Majutsu no Index series and a recurring character in Toaru Kagaku no Railgun. She is a Level 4 esper and is an operative of ITEM, an organization in the Dark Side of Academy City led by Mugino Shizuri, and is a capable combatant in the team. As a character she has an important supporting role in the development of Hamazura Shiage as a protagonist and is one of his closest allies.