Sorry,Supai Kyoushitsu 18 is not avaiable yet. We will update Supai Kyoushitsu as soon as it is released.
If you want to read new chapter of Supai Kyoushitsu at the first time,you can subscribe it. We’ll send your the email as soon as Supai Kyoushitsu 18 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