It started as Tenshi, which is japanese for angel. I know, I'm a nerd obsessed with japan. But alas, I am no "1337 AzN Dr1fTr".
Anyway!
It got edited by a bunch of bubbly girls I met in Ragnarok Online, who kept calling me "TenTen-san". It grew on me, and I used that to register for GTP.
Eventually, I found it less humorous, and wanted something different. Tenshi was tired in my mind, but I wanted to keep it something close to that.
So, when I went Premium, I asked Sir Jordan to clip it down to "Ten".
👍