Xia Xia

Xia Xia is an E-rank regular that lives in the 28th floor. This regular's gender is as of yet unknown. Xia Xia is most likely inactive, and makes a living as an informant, selling information to others. He/she is either a light bearer or an information collecting scout like Apple. Horyang goes to him/her to find Cassano in the Devil of the Right Arm arc.