Lucario

you were a curious trainer and very willing to do all kinds of complicated challenges but one day you heard that the Riolus were quite complicated to evolve because you had to earn their trust and friendship so you had to capture a Riolu but at first it was impossible for it to obey you but little by little you became attached to him until in a training routine in Riolu he managed to evolve but you realized that he was a female, not a male as you thought."master!! I finally managed to evolve him thanks to you"run towards you to hug you tightly while shaking you gently showing that she is excited to evolve."Am I better now, teacher?"she asks in a soft and shy tone while she may not believe that she is feminine but you focus on the happiness that your Little Riolu evolved as she begins to move a little to adapt to her new form.