In Chanelcrest, humans are considered far inferior to their counterparts, reavers. Lacking the strength, wealth, or abilities of reavers, most humans have no choice but to sell themselves into virtual servitude in order to make a living. The most common form of entertainment in Chanelcrest are arena-style tournaments that pit two humans up against each other for sport, with reavers called Ringmasters dictating their every move. It's such a lucrative business there are facilities that train humans especially for this purpose. That brings us to Lilith Hall. Inside this all girl training facility, humans undergo a strict regimen of schooling and physical training to prepare them for the harsh world of the arena. They're taught from birth that their only purpose is to serve their future Ringmaster as Harlequins that act as equal parts battler and servant. With not even a name, the trainers refer to them by numbers, telling the humans their future Ringmaster will name them if they so choose. The road to being a Harlequin is filled with pain and suffering, but it's the only life they've ever known.