The Road to becoming a Exorcist

Edger a thirteen year old boy trying to make his way into history as the best exorcist but can never stop messing stuff up, until he stumbles upon a magic keyboard that allows anything. After finding the keyboard, his class goes to the field to do exorcism practice but after dropping the keyboard he teleported to his favorite games and anime and have to fight through every challenge. But through his adventures he finds a foe that possess the same power as Edger but uses it for evil. Satan.