Video of Hiro Mashima drawing the Gruvia sketch at the New York Comic Con panel on Friday, and answering several questions.
He talks about Juvia’s character, and how he initially only planned for her to appear in the Phantom Lord arc. But then when she fell in love with, and started following Gray, he thought things were becoming interesting, so he continued to include her to expand on their relationship. ^_~
Mashima’s editor was also asked who his favorite character was, and he said he originally liked Lucy, but now he thinks it’s Juvia. ^-^