This is a pen that I use for line drawing when I am busy. 忙しい時の線画に使ってるペンです。
I use it for line art and hatching. It may be easier to show the strength of the line even though it has few habits.
線画やハッチングに使ってます。癖が少ないわりに線の強弱を出しやすいかも?