See this page for more detail and placeing pre-order: http://zeldacw.com/aa/book_preorder.html
The special chapter is titled "irresponsible/ To Be Continued (?)" for a reason. I sketch them whenever possible and is just for fun and nothing serious. I may or may not give you a proper ending to this chapter, so DON'T expect too much out of this chapter...XD
Mean while, MYth: A Promise III has started on Manga Magazine. (new page every Sunday for free users)
It will be posted on Smackjeeves at a slower rate starting in January.
Thank you for reading and please continue your support for MYth!