What are these Japanese characters?
I have seen these characters in plenty of untranslated manga, but I haven't been able to find those two letters anywhere.
Does anyone know what Japanese characters they are supposed to be?
For future reference, I would suggest providing more context for questions. Without the proper context, answers may be less accurate.
As mentioned, more information would be helpful, particularly about the second one. I will edit my answer if more information is available.
EDIT: See the answer by user34239 for information on the second character.