Differentiation

"If you're living life with only light, that's not life."

Lucy and Acacia are best friends, yet so different.
At school, Lucy is known as the "devil", but outside of school, she's the nicest person in town.
On the other hand, Acacia at school is known as the "angel", always caring and nice, your stereotypical teacher's pet, but as soon as school lets out, she is the complete opposite.
But when summer break starts, they both go on a trip to the beach. They arrive, and they take a nap under an umbrella. But when they wake up, a whale informs them that this is not a safe place and they must leave now.
Nothing will ever be the same.