Here's a site that has raw chapters...but only from Chapter 21 to 170. Enjoy, considering the long update delay:
http://manga-mura.net/?cat=1306. This site is now unavailable, dammit~ !
Sen Manga is another site, but it's ahead by only one chapter:
http://raw.senmanga.com/Nagasarete_Airantou/.
If anyone got another (better), please don't hesitate to share.
Edited by NormanDFang, 08 October 2017 - 04:27 AM.