I have 3 characters, so I shall explain all of them.
Massaki: My first character, I think Massaki was some Japanese name, but I forgot what it meant.
RaidenIV: Raiden mean thunder/lightning in Japanese. Also, Raiden was taken, so I added an Iv (Roman numeral for four) at then ed. ^_^ Also, I use this name for everything.
Dyrvnu: I wanted this one to be a martial artist, so I translated punch from English to Welsh. I got Dyrnu, and added a v in the middle.