|Hair||, Green, Waist Length+|
|Body||, Pale, Teen|
|Clothes||, Dress, Necklace|
|Role||, Full Sister, Orphan, Psychic, Telepath, Transfer Student, Younger Sister|
|Engages in||, Investigation|
|Visual novels||Side character - Area-X|
Protagonist - X-Note
Essi is pursuing the truth regarding her mother's questionable death. The necklace that was left by her mother before her death was actually a USB flash drive with a locked folder called "X-note". In order to find clues to unlock it, Essi went to Xen Institute upon Yuon's invitation.