Aiura9405K
Aiura Kyouko's alias on Bridge-related platforms(BridgeBase Online, FunBridge, BridgePairs, InfoBridge, JuniorBridge, BridgeChamp, Cuebids etc.), due to the character limit of 10 letters.
※ 9405 is Japanese wordplay on 'Kyouko'; 9(き[ゅう])4(よ[ん])0(お)5(こ)≒きょうこ(橋子)