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