there are multiples ways of summoning living things but all in all it begins with a contract. now this contract does not have to be written it can be spoken but magical implement has to placed in your words or writing. also both parties do not have to be mutual to make a contract. one s will simply has to be stronger than the others. for instance the living hive i summoned was forced to be my summons, why? because i defeated the king hive therefore making all hives my to control. if you do not contract with the alpha of that species then you cannot summon a multitude of them. if you want though you can just defeat a bunch of the species and just sign them to individual contracts. "kyo pulled out his pocket watch and looked at the time" seems to almost be that time "he mumbled to himself"