Wizards Of The Coast

on a plane of the multiverse known as kamigawa a young boys friend who is also the future emperor of kamigawa goes missing after a man with a metal arm attacks one of the kami in the palace.

Aoko Goshoku is the president of the student council at Mahochiehi Academy, and she loves to play Magic: The Gathering. In fact, she loves it so much, that she's willing to play under any conditions - even if that means dating the winner if she loses! Aoko never backs down from an interesting challenge, much to the annoyance of her fellow student council members. But when one challenge drags the whole council into hot water, will Aoko's Magic skills be enough to save her friends?

In this world there are five elements of mana, green mana which is grown in the forest and represents life and growth. White mana which is born in the plains and symbolizes order and light. Blue mana which rises from islands and it reflects knowledge and illusion. Black mana which seeps from the swamps and controls death and darkness. Lastly, Red mana which bellows out of the mountains. Chandra, known as the "Crimson Mage" who controls Red mana is acting as the representative of Keral Keep in order to help a village in the Great Western Wood. Wikipedia