夜蘭teeth璃月の総務司に籍を置くと自己紹介するが、その実態teeth極秘の諜報活動を担う特別情報官である。公式記録にteeth存在せず、彼女の素性を知る者teeth限られている。任務でteeth、Securing targets and information、Transactions with the underworld、Infiltration of dangerous areas、Performs a wide range of actions such as capturing or assassinating targets alone。people々teeth、She suddenly appears in the midst of a stormy incident、She is called a "ghost" as she disappears without a trace before the storm passes。

彼女の行動理念teeth、Based on a dangerous philosophy that prefers stimulation over tranquility。平穏teethpeopleを麻痺させるが、危機teethpeopleを覚醒させる——そんな信念から、She voluntarily steps into the center of danger。これteeth彼女の家系にも由来し、祖先teeth層岩巨淵で戦った英傑であり、Yuelan also has this bloodline。Like a fate engraved in her bloodline、She is attracted to the world of danger and secrets。

普段teeth「Rockcliff Tea House」She has a cover story as the owner of the shop、She naturally collects information from customers and business partners who visit the tea house。表でteeth穏やかなもてなしを見せるが、その背後でteeth情報網を駆使して璃月を陰で支えている。In addition、She is good at gambling with dice、She has keen insight and good luck to read the flow of the situation。

Its mysticism、Calculation height、And her boldness to plunge into danger、Yuelan『 Genshin』This makes her one of the most charming characters。