Also known as: 阳·比斯莫克, ヤン・ヴィスモク, 얀_비스모크, ヤン, enlxmfflsdis, 양비스모크, YanVismok
Character from Library Of Ruina.
Messenger of the the Index, one of the Five Fingers of the Backstreets. Unlike his colleagues, Yan shows doubt, and is not loyal to the Prescripts.