Nagasawa Stationery original ink, a collaboration with Kobe University. I bought this after trying it out at the Kobe Brick Warehouse store, but I mostly use the darker blue KOBE INK, so I'm selling this one. I'll also include a blue-black ink that I don't use because it's too dark. This is a collaboration with Kobe University, the alma mater of the new Prime Minister, Sanae Takaichi. What do you think? Both inks have only been used for a test write.