The Seven Sins : Trinity Seven

seven sins is one of the list of deadly sins , which is been used to practise magic .
the world was been sworning by demons, spirets , black demon spiret, and any monsters that can harm humanity
people don't haved a choice to approch the man called Yugine who is the head master of the Mage Academy and who is the one who built the school rescue all children and young .
sadly the old parents did't make it.

on their situation the schools decided to attempt to also practise this along side with the subjects of the school.
the famous school named Mage Academy was built to let students learn and leave on the school to protect themselves , while learning art of magic and the history and source of magic , they are useing deadly sins .

no choice of their path .
If you were one of the students will you study the magic even tho your useing seven sin to protect yourself in apocaliptic era of demons, monters and spirets that can harm you or humanity and letting them destroy the world .

what power would it be

-alchemy
-elemental
-mental
-arcane

WHICH OF THIS DO YOU PRACTISE OR MINIFEST