Rena

Rena first appeared in Chapter 5 as a part of a beginner party that wanted to raid Specter's Charnel House. In following chapters it was revealed that she's a actually a thief associated with the T&T Guild that lures people into dungeons to take their loot. She was a trainee of T&T Guild. A task was given to her by the Headmaster Slime who is also a branch manager of T&T in order for her to get promoted and become an official member and later on become a manager as well.