Business model:
I'm not familiar with a lot of the manga related terms you used but it sounds like there is some copyright infringement going on.
I'm not sure how using bitcoins will make anything different. Are you just trying to make it harder to trace who does what?
The goal here is not to run foul of copyright laws, but to provide a legal, reliable, and convenient source of manga for the public in form of online reading sites. As it stand, these illegal online manga reading sites can get taken down anytime for copyright infringement.
It is a niche that needed to be filled.