The day the world went away

Hello ^-^ just made an account to comment here. This piece of art is already 11 years old, I hope that I'll get an answer. I have a question, because some people talk about that it is tagged as Pokemon as far as i understand and because you also mentioned it in the description, could there be the possibility that the character holding the heavily wounded or even dead person is Doctor from the game Arknights? The head really reminds me of that character. I'm looking forward to get an answer! ^-^ Thank you for the great piece of art and in advance for answering the question!