Sorry,Shinobi no Ban 4 is not avaiable yet. We will update Shinobi no Ban as soon as it is released.
If you want to read new chapter of Shinobi no Ban at the first time,you can subscribe it. We’ll send your the email as soon as Shinobi no Ban 4 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