With the character_name tag, is it appropriate to also add the character's tag (in this case flandre_scarlet) only if the character is actually present in the image?
With the character_name tag, is it appropriate to also add the character's tag (in this case flandre_scarlet) only if the character is actually present in the image?
(Edited for clarity.)
No since they aren't actually there. The translation would be enough.