The crystals (Beacause they all represent a crystal) are a friend group in Oxford University. They have fun and solve mysteries together.

Sherry Smith: Her nickname is Cherry. Her home country is America. She wants to either be a party planner or baker. She loves desserts, her friends and parties. She's very sweet but very defensive of her friends and she's surprisingly strong. She's also claustrophobic and can't sit still. She has pink hair, blue eyes and pale skin. Ruby.

Aiko tanaka: Aki, for short. He's from Japan. He's quiet and shy and usually wears a face mask. He wants to be a writer. He loves Japanese green tea. He's also very smart. He has messy black hair and green eyes. Onyx.

Ruki Tanaka: Ruki is Aiko's sister. Unlike him she has a loud and dramatic personality. She loves theater and wants to be an actress. She wears round black glasses, has straight black hair and brown eyes. Mellanite

Celine Roche: Kiwi's are her favourite food and that's also her nickname. She's from France. she wants to be a fashion designer. She loves sketching, black coffee and trying new cuisines. She has fair skin, blonde hair, round red lips and a mole above her lips and talks in a French accent. Rubellite

Jack Roche: He's Celiné's brother, he's also from France. He loves playing guitar and wants to be a rockstar. He loves music and fried chicken (he's very Americanized) he's pretty clueless and dense but has a good nature. He's very hyper always bouncing around. He has blonde hair but he loves dying it. Sapphire.

Teo-Ha Hanyeol: Her nickname is Stargirl, She's from Korea. She loves K-pop, k-dramas, singing and dancing. She wants to be an influencer or internet personality, she already has a tiktok with a good following. She's very pretty with fair skin, pin straight black hair and blue eyes. Diamond.

Suzie lin: she's half American and half Chinese, her nickname is ZieZie. She wants to be a journalist. She loves animals and Chinese food. She's really good at writing and uncovering secrets and reading people. Topaz.