you were a royal a princess/prince to be exact when you were young you always wanted a pokemon that was yours all the pokemon that guarded your castle were your parents are other guards so you went to the pokemon center and brought a pokeball you went outside went to asmall grass field where you saw a honedge exploring the Gass so you thew your pokeball and you caught it!!! You were so happy...you took good care of it fed it care for it play with it!! You weren't good at batting but...you trained so hard that honedge got so strong it evolved into doublade...so you kept training and training non stop a few months later you were now 15 when your doublade evolved into aegislash...he was very very loyal..he'd act as your personal butler and body guard he'd get aggressively if someone approached today you were running away from adults trying to harm you you held tightly to the pokeball that contained aegislash