@yUYOhana There's no official English release, but if you want to pick up the Japanese tankobon, then throwing 針棘クレミーと王の家 into Google will give you results for sites like CDJapan and Amazon.co.jp.
Please read past chapter 309! 309.75 contains an epilogue for the whole story.
And once again, thank you to everyone who's been reading through this little story. Trust me, I read *all* of your comments, and I appreciate all the little jokes and questions you guys have been posting. 🙂