We’re caught up to the Japanese raws! (More or less, there’s a bonus chapter but that’s 4 pages of 4-koma.) Chapter 18 isn’t available yet, and will probably show up sometime in the next month.
Volume 3 has just come out in Japan! I’m sure the author will appreciate it quite a lot if you buy a copy. If you live in America, and there’s a Kinokuniya location nearby, it’s only about $9.
If not, don’t despair because Honto has some great shipping prices. For four manga-sized books, the shipping cost from Honto to the west coast of the United States is 980 yen, which is roughly $9.66 USD. The 3rd volume from Honto is only 616 Yen, which is about $6.08 USD. The entire three volume set is only 1,849 Yen.
For fans who have trouble signing up for Honto, please take a look at this link HERE for a step by step guide on how to sign up and set up your shipping.