Thread:Astarothfan/@comment-189.217.212.231-20150711135340/@comment-24421137-20150711154629

Specifically speaking a cross over on this wiki. So lets say this you see an article on here that you like, and you want to do a cross over with that article, you would have to ask the person who wrote that article to do a cross over.

Example:You like the character Shirou Fujima, then you would need to ask Bamafelix for a cross over.

Now if you are saying a cross over with a completely different manga in general you are allowed to do so without needing written permission.

Example:Issei meets Naruto.