Asuna (アスナ, Asuna?) is a heroine and the partner ofKirito in the Sword Art Online series. She was the sub-leader of the «Knights of the Blood» guild in «Sword Art Online». Her real name is Yuuki Asuna (結城 明日奈,Yūki Asuna?), and she is the daughter of the former CEO ofRECT Inc.
«Lambent Light» (ランベントライト, Ranbento Raito?) is a one-handed rapier owned by Asuna in Sword Art Online (SAO). Her rapier, combined with her speed, earned her the nickname «The Flash». Lisbeth boosted her weapon to +40. It is her end weapon used until the clearing of SAO.