So, I was getting breakfast (or a "morning" as it is called in Nagoya) and I noticed a little sign next to the register that said "Free mini fountain pen fo new card members".
You know where this is going.
I got one of their pre-paid point cards; I go to the cafe often enough anyways that getting the point card makes sense (or so I tell myself). The staff charged my new card and gave me a fountain pen that looked quite like a Petit1.
It turns out that it's one-time use. I might write up more about it, but right now, it's at work. I might just attempt to make it an eye-dropper when I use up the ink.