I'm currently building a Messer High Grade HG model kit.
I'm trying to do the panel lining, but the ink isn't getting into these deep yellow grooves properly.
I'm using this pen, but if you have any other recommended methods or pens, please let me know!
Thanks!

Please teach me how to apply ink! I can't get the black to go in the deeper areas properly. Could you please tell me your recommended method?

Please teach me how to apply ink! I can't get the black to go in the deeper areas properly. Could you please tell me your recommended method? | satoooo's Gunpla works