A downloadable visual novel for Windows, macOS, and Linux

❤ Story ❤

The crystal Kingdom of Chalcedonia was once a beautiful place, under the rule of the Princess Rosalia, they lived happy peaceful lives. Until one day, monsters called Nightmares destroyed the kingdom. Princess Rosalia and her fairy knight Diana hid deep in the castle, praying that their last hope, the magical Rose Crystal Mirror would produce a miracle, and save their home, however, they were attacked by the leader of the Nightmare Agency, Druzy. Diana fought helplessly before finding herself transported Earth, but her Princess was no where to be seen.

Unfortunately the nightmares began to attack this new world too. Valerie Amaranth, an ordinary 17 year old, has her world changed forever when she recieves the powers of the Legendary Crystal Warrior Diamond Heart. Now with the help of Diana, she must find her allies, defeat the Nightmares, and rescue the missing princess Rosalia.

Characters Villains

Please note that all assets such as artwork and sounds are yet to be finalized. This demo is meant to give you an idea of the full game, but doesn't fully represent the final product in mind.

Update: 2/06/2017 - Episode 5 Update

Tumblr Twitter Patreon Credits


MagicalWarriorDiamondHeartDemo-2.0-win.zip 293 MB
MagicalWarriorDiamondHeartDemo-2.0-linux.tar.bz2 295 MB
MagicalWarriorDiamondHeartDemo-2.0-mac.zip 291 MB


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Nice demo. Very long as for demo of visual novel.

Interesting, funny. colorful story :) with nice characters, and a lot plot twists and meaningful choices. 

Good artstyle. All characters are good looking and they have their own stories, personalities and role. 

I like it. And maybe even I'm waiting for more... hehe    

just finished the demo...and DAMN!!!!! when will this be realesd?!?! I WANT IIIIT!!!!!!! 10/10 best game ever loved it! :D

you are amazing btw!

Is this going to have voice acting in the near future?

super cute!

hello from tumblr! Neat!!

loved the demo it's so Cute  . made me think of Sailor moon in a way . 

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Heyo, Cannot wait till the full release. Haven't tried it , BUT because of the positive comments and the awesome engaging story line, I'm really hoping i will love it. -Blood

Ahhh this game is so positive and fun and cute it makes me so happy!! I can't wait for the full release!!! :D


Just what I was looking for :D

I had played another magical girl VN, and was looking for others when this popped up. I love the character diversity, and there were quite a few hilarious moments as well. Definitely looking forward to the full version!

I also made a let's play, and plan to cover the rest of the game in the near future. Hope this helps!

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#BlackAnimeGirlMagicMy edges were SNATCHED!

The racial diversity in this game was amazing! The story is very interesting and I feel the execution is going well. Comedy is flawless, there are many points in this VN that will have you screaming.

I must thank the GD for making such a beautiful black female protagonist. You are showing girls who look like Valerie and love anime are being represented and that's what I love the most.

Thank you so much for making this great Vn


I also made a video on this game if you don't have the time to read it:



this post made me smile a lot lol. i watched the video too and I liked it a lot, im glad you enjoyed the demo so much!

Love this game!!!!!!!

OMG this is so freaking cute~ I'm already shipping people up!

Is looking good so far ! :)

The best visual novel game I have ever played!! I can't wait for the full version~!

i cant download this, how can i download it?

The download link is at the bottom of the page it should start downloading right away

This game is great, I hope a full release happens soon. I love the outfits , the magical girl plotline and the awesome chracters of color, good job.

WE NEED MORE AHHHH<333 amazing work so far!


Need full game! We want moaaar


This is awesome; when is the full release though?? :((

pleaseee i gotta knowww


yeah me too i gotta knoww pls this game is the best game ever, by the way great Job!! like really ❤

Possibly my favorite otome game I have ever played! The art is already so beautiful and all the subtle character feature and backgrounds! My word! I can't wait until the full release, It's so wonderful, magical girl game? Yes please.