Pendulum Zero by Nistica

The story follows nineteen year old Casey, a high school dropout suffering from depression, as she due to some unusual circumstances surrounding her family, ends up attending one of the most prestigious institutions for higher magical learning in the world of Eorbe.

Aldor Academy of the Mundane and Magical Arts.

Here, she quickly finds out that she has to live and work together with four other students who each have their own reasons for coming to this school.

Some more sinister than the other.

The plot centers around their daily lives at this place as the five of them work towards achieving their goals and dreams.

Source: Tv Tropes (Edited)