Mandatory Roster Field: Source

[Monkey D. Luffy]

This could be solved by just googling the character.

What if the character is an OC from a particular universe? Googling Ichigo from Bleach is simple to figure out, but Seraph from the same universe would be a bigger problem.

We could just put it in the standardized roster thing that we call get. Underneath name and above the powers and all that jazz.

If this was the case, citing their source would be ineffectual, since Seraph does not exist in Bleach. However, I see your point. Just knowing his character inspiration comes from Bleach I suppose would be helpful.