The Game of the Greatest Black Mage - Chapter 0

A girl who calls herself a demon appeared before a timid student named Fumio Kijima. The girl claims to be a campaign girl from the demon world and she gives him the ability to “summon a room” from nothing but thin air.

At first he doesn’t abuse his power and uses it as a convenient ability in his every day life. But one day he is bullied by his classmates under a false pretext and is made to suffer. In the past he would have wallowed in misery and cried himself to sleep, but now he had a power to call upon.

“I will make them regret it!”

Using his powers to summon his “room”, he begins his era of confinement and brainwashing to achieve his goals.

Seven years ago, after their breakup, he disappeared without a trace.

(This story take place in different timeline and universe)This is the story about boy named Karan getting recarnatated in the time of Mahabhrata as a Karna. Biggest war at that time.What will happen if he become karna in it?What will happened if as a boon he ask System?What will happen if he get to meet those characters? Is he able to chnage their destiny or it will turn worse?Let's find out what will happen when he born into age of God's. Do he able to achieve what he wanted to or something else's.What if this world is as not as simple as he thought, Let's find out.