Crystal Fujioka

 Crystal (Crystal Fujioka) is one of the main characters in SSD. She becomes the Vice President of the student body, alone with Green, who becomes President.

Schedule
In the first chapter, it was stated that Crystal's classes are

Crystal Fujioka's 11th grade Schedule
 * period 1 - AP English/Japanese III
 * period 2 - Choir
 * period 3 - Mythology
 * period 4 - Gym
 * period 5 - Bug Catching & Studies
 * period 6 - Chemistry
 * period 7 - Journalism
 * period 8 - Algebra II

History
When Crystal was a young child, she went to Mt. Mortar with her Smoochum, Chumee, to practice Pokémon catching. An Arcanine then suddenly attacked, making her fall and break her arms in the escape. When she woke up, her arms were wrapped to bones and healed with medicine. This care came from a Cubone, a Parasect, a Natu and a Hitmonchan that were hiding from the Arcanine after being injured by it. When the aggressor reappeared, Crystal took a look at his face, which was hurt, and healed it with Parasect's help. She then befriended and caught all five Pokémon.

Relationship
Gold - Secret Crush

Silver - Best Guy Friend

Trivia

 * Doesn't mind the fact that Blue makes her wear strange cosplay, unless there is a camera around or Gold is there...