Just presenting myself

 What material do I use?

 First of all, for the line art I use the Faber-Castell PITT artist pen, color black size XS, S, F, M and ( when I'm feeling extra ) size B.

And, for coloring and doing calligraphy I use Faber-Castell PITT artist pen size B, which is kind of a brush-shaped tip, which makes them pretty easy to use. 

That's all guys, these are suuuuper normal and cheap materials so you can buy it in any art store. Se yaaa!!