You're accusing me of something serious. I did not plagiarize anything and I would like to see the proof you have against me to assume such an accusation. I drew this entire set when I was in high school over 4 years ago and still have the original sketch. If your friend happened to draw something vaguely similar, that is quite serendipitous, but I assure you, I did not steal this idea nor this image from anyone.
Perhaps if the image in question were shown this would explain the entire situation?