AHHH YAY despite playing Diego and Rafael my Spanish is TERRIBLE and I can't judge you, I just ask my native speaking friend for fun slang sometimes :(((
Diego is her year and housemate. He speaks Spanish, and also has an appreciation for morbid stuff... but in a pretentious hipster artist way. (Wasp coffins.) He's an airhead, and overemotional. Mercy has probably gotten him to spill all kinds of personal details with her questions. They're also on the same cheer squad!
Rafael is in her year, and they're both from Mexico City! Rafael's polite but nooooot receptive to invasive personal questions. He was sheltered a lot as a kid for very different reasons, but became a controlled perfect prince. He'll like Mercy but she'll probably periodically get him on the defensive.
Kenzie is her cheer captain! SHE LOVES GRISLY MURDERS! Kenzie loves noir and murder mysteries and true crime, and she's got thick skin (aka ice water running in her veins). Her cheer team is two beefy boys and a bunch of itty bitty girls! (Except Kenzie who's super tall lol) She's a lot gentler to her cheer squad than anyone else because she needs to maintain peaceful respect to manage the squad but... I mean. You know what she is.
Calvin and Reid proooobably won't cross paths with her too often UNLESS YOU CAN THINK OF SOMETHING I MISSED.