Marie

A girl who grew up on a farm in the alps.

The youngest member of the science camp, Marie is a student in the math class. Despite her age, she shows incredible levels of genius, to the point where she's taking university-level classes on the side. She's shy and doesn't talk much, but she's very resourceful and often gives insightful remarks. A good friend of Patti.

Her age is never exactly revealed, but she is likely 15 during the main story.