Ink is Sailor Yurameku Seki. Bought in my beloved Stilo & Stile. This is my last purchase this summer, now my plan is to enjoy the pens and focus on improving my crap handwriting. https://sopuli.xyz/pictrs/image/12beaa80-3f36-43a0-9347-ef839cd2de19.jpeg
It’s very nice. I don’t have much experience with various nibs but I have another architect - Hongdian long knife. This one has more feedback and more variation between vertical and horizontal lines, Hongdian just glides and is wetter (more wet?). The whole nib is very large in comparison with the pen body and stands out.