I'll try that when I get some art pens, an excuse to go to 'Art Friend'. Visiting the 'Art Friend' art shop is a fun experience lol, I usually get stuck in the shop for a long time sketching around with all those sample drawing materials.
There'd probably be drawing sessions in pen sometimes in the animation course, if not I probably won't try much drawing in ink. Because I know I would be very addicted to drawing on tablet lol
My art classes last time always taught pencil only drawing and I learnt pen prawing only in design class where we draw objects. I'm way too used in pencil drawing, I've been doing it like 15 years or more lol, but I switched to mechanic pencil like halfway, because I'm lazy to sharpen.