Kain sat across from Gabriel, the young boy's expression a mix of curiosity and uncertainty. Serena was beside him, her sharp eyes focused on Kain as he finished explaining the unique features of forming a contract through the summoning array.
The room was quiet, save for the soft hum of the lights that lined the walls of the laboratory that had become Gabriel's temporary home (and prison).
"…And that's what happened," Kain concluded, his voice calm but earnest. "The creatures we summon using this method have a natural resistance to abyssal energy. But there are cons, too—so far, as far as we know, those that become beast-tamers in this manner can only form one contract. Therefore, if you are dissatisfied with whatever creature you get, too bad. It can only remain your one and only partner."