Pokemon Special: Protector's Code

After Crystal succeeded in capturing all the pokémon in the Johto region, Professor Oak decided that he needed more pokedéx holders to gather data for his research. The realisation that none of his current pokedéx holders were very serious about their "duty" hit him harder than ever, and he contemplated to find another potential trainer. Hearing his worries, Crystal suggested her twin sister, Amber, for the job as she often encounters a plethora of pokémon in her long journeys.

Pokemon trainer, Amber, is a professional "Protector" of pokémon and is perfect, as far as Oak is concerned. She meets and deals with pokémon daily, and being Crystal's twin sister has put her in Oak's "good book". How will Amber do as a new pokédex trainer? Will she meet or disappoint the Professor's expectations? And what is the secret behind the past that she won't reveal to Crystal after they separated ways?