Time To Get Filthy Rich [Part 1]

The Slave Market was bustling with people. To Thirteen's surprise, Humans were not the only race up for sale.

Trolls, Ogres, and even Tigerkins, which had been captured by the Barbarians in their raids, were also up for grabs.

Although they weren't physically restricted by Slave Collars, there were Beast Tattoos that forced the Monsters to obey those who would purchase them.

These Tattoos would be planted on the foreheads of these monsters, and once their new owners had placed a drop of their blood on it, the monster would serve them for exactly five years.

Thirteen already knew about this because it was similar to his Rune Magic. 

Unfortunately, only Advanced Rune Magic would allow him to enslave Monsters. However, Laplace Demon and The One limited the abilities he could use to Intermediate Rune Magic.

The Beast Tattoos also worked on Beastkins since they were part beasts.