Contracted Beast
"Right then, where shall I start?" Nan Tian asked.
"How about why she's split up with the faction then. With her older sister being the hero, surely they should have stayed in Britain no?" Shiro replied.
"Sure. In the beginning, back in the UK, Qin Lan's family were quite passive in terms of combat. They would focus on healing along with keeping everyone safe. In order to defeat the monsters without actually focusing on combat orientated classes, they started to study contracts and ways they could 'tame' monsters. Eventually, after a few generations of research, Qin Lan's grandfather had the biggest success when he proved that he could tame monsters and use them as bodyguards while making sure that the monsters didn't harm any humans in the process unless they were physically attacked.