[[Fate/Zero]]'s [[Berserker (fate/zero)|]] as depicted in the [[Sensha Otoko]] April Fools joke for 2009. In this universe, he goes by the online username "U to O", and is a helmet-wearing man who fears facial exposure and eye-contact. He uses his sketchbook to write his speech and thoughts, and is actually a nice guy.
berserker (sensha otoko) (fate)