Here you might find answers to your questions. I will update this as necessary.

What does BL mean?

BL stands for “boys love”. Gay. Man on man. Yaoi. Whatever you want to call it 🙂

I wouldn’t consider it the main point of the story though. I aim to create a cool fantasy comic first and foremost!

Will I see something I’d rather not see? 

Well you won’t be seeing anything sexual involving minors, or non-consensual sex.

So what’s the rating for this thing?

On terms of violence, probably PG. Some pages will also contain sexual themes worth R.