The Demon Lord’s Daughter: Demona (魔王の娘デモーナ)

DLSite: 
https://www.dlsite.com/maniax/dlaf/=/t/m/link/work/aid/rance/id/RJ282617.html
If you like the game, please buy it to support the studio using my referral links. So that I can buy more games to translate. You can also use the banner too. Many thanks.

▼ Story

Demona, who was spending her days of games and comics in her room suddenly received a call from his father, the Demon King.
When she went to meet him, she was given “Next Demon King Trials”.
Demona reluctantly accepted.
What kind of adventure is waiting her in the future? …

▼ English patch

Updated May 24 2020:
If you still encounter Missing / Can not open files error, you can do one of these solutions:

Solution 1 (thanks to Zyts) is a little advance:
Open the original data\System.json file, look for "encryptionKey":xxxxx...xxx for example "encryptionKey":"3337381473e04c05fafc4db52fac78cd.
Copy the xxxxx...xxx parts and replace it in the "encryptionKey" of the translated System.json

Solution 2 is easy but has fallacy:
Just copy the original System.json to the folder data\
It will work but now the main menu is in Japanese.

English patch version 0.4.2 (this is the version of the patch not the game). Please buy it or pirate elsewhere.
Patch status : Machine Translation: 25%, Human Review: 75%. You now can understand most of the story with this patch.

Link v0.4.2: 
https://drive.google.com/file/d/1YiSPKfHBHXZxk_sdvv7nB47cdPCpQ6AC/view?usp=sharing
Link v0.4.3 (update solutions for missing files bug in readme):
https://drive.google.com/file/d/1cvEWJ742VCZeEGFB4X-FIwPFJ36FKOsI/view?usp=sharing

I decided not to monetize with any URL shorten site because they always want to hijack and abuse push notification of your browser. Just deny all if any shorten site asks you. Honestly, I hate the shorten link affiliate
In the future, I may have affiliate with DLsite. At that time buying game helps the studio and help me too.

▼ Installation guide

Copy data folder to <Game Folder>\www\data. Overwrite any existing files. Only copy and overwrite existing files. If you delete the folder \www\data before copying, you may miss some files.
These are json data files so it’s not virus. Just scan them to make sure. Leave me a comment if you have trouble.

Come back for more updates. I will review and edit every 2-3 days in my free time.

 Bugs, FAQ, Support

Sometimes, it will say you are missing a file. Please email me that file name. My email is: hentairanch{at]gmail[dot}com

If you want to fix it temporarily, copy that file from the original installer of dlsite to folder \www\data. Of course, it will contains Japanese.