Sorry,Glass No Kamen 259 is not avaiable yet. We will update Glass No Kamen as soon as it is released.
If you want to read new chapter of Glass No Kamen at the first time,you can subscribe it. We’ll send your the email as soon as Glass No Kamen 259 updates.

Have more fun on facebook:

https://www.facebook.com/mangahomelife/

Or enjoy fantasy shoujo moments on tumblr:

https://onlyshoujo.tumblr.com/

You can read some other great manga to kill time