Sorry,Knight Princess 21 is not avaiable yet. We will update Knight Princess as soon as it is released.
If you want to read new chapter of Knight Princess at the first time,you can subscribe it. We’ll send your the email as soon as Knight Princess 21 updates.

Have more fun on facebook:

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Or enjoy fantasy shoujo moments on tumblr:

https://onlyshoujo.tumblr.com/

You can read some other great manga to kill time