Sorry,Killing Time 15 is not avaiable yet. We will update Killing Time as soon as it is released.
If you want to read new chapter of Killing Time at the first time,you can subscribe it. We’ll send your the email as soon as Killing Time 15 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