Instructional texts of Arka on the web - Arka: One of the Most Developed Conlangs

You can read "First Guide to Arka" here.
It is a beginners guide to Esperanto in dialogue.

Two anime characters, Xion and Lein, teaches Arka to you.
Xion (pronounced like Shi-on. It means an aster in Japanese) is a Japanese high school student who was summoned to Arbazard and is learning Arka.
Lein (pronounced like lain. It means a ceremonial apparatus in Arka) is an Arban college student who teaches Arka to Xion.