1Naruto/Sword Art Online
A brand new single player virtual reality game comes out called God Slayers
Main character has to be a guy
Can be naruto, yami or oc
Has to be a ninja or a medic
can be in a clan or have brand new Kekkie genkie
Has to have a game levelling up system
Must follow canon but it can have its own twists
Doesn't have to be a harem if it is 4 max
When the chakra of the nine tailed fox hits him it has to corrupt the game and make him physically in the game
Must follow through manga
Can't be yaoi