I never thought I would GM.
When I first joined the site 'officially' - because I had dabbled earlier on another username that, to be frank, I couldn't possibly remember if I tried (I tried hard) prior to joining as Gallant, I played a young officer on the Sakura. I had these great big ideas, but was too busy with other RP sites to really bother too hard.
I'd have to say it's my investment with the site.
When I came back, I explored a lot of things with some single posts about Nekovalkyrja - their mentality, the idea of slave-soldiers, or manufactured soldiers. And I pitched to Fred, hey, I'd like to play a Miharu sprite. He was reticent at first if I recall correctly, both about taking on a new player and about a player playing...