About This Demo

The Crystal Kingdom of Chalcedonia was once a beautiful place, under the rule of 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 to Earth, but her Princess was nowhere to be seen.

Unfortunately, the nightmares began to attack this new world too. Valerie Amaranth, an ordinary 16-year-old, has her world changed forever when she receives 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.



Magical Warrior Diamond Heart is an LGBT+ romance/drama visual novel inspired by magical girl anime. Play as Valerie Amaranth and decide the fate of the world while trying to smooch lots of cuties! Will Val defeat the Nightmares, make new friends, and find the love of her life along the way? Or will she meet her tragic end?​

This game contains content that may be frightening or upsetting to some players including graphic violence, abuse, blood, body horror, and severe mental health struggles.

Genre: Romance, Drama, Fantasy, Magical Girl, Comedy, Action




Magical Warrior Diamond Heart is made to be played multiple times. The game has scene variations depending on your relationship with the cast, and characters will react to and remember previous choices you've made. Characters may even react differently depending on how the player chooses to interact with others, meaning tons of content to explore!

♥︎ This demo includes ♥︎

• Male, female, and a nonbinary love interests to get to know
  
• Partial English voice acting from a very talented voice cast!
  
• About 8 hours of content to explore!

♥︎ Accessibility Options ♥︎

• Choose between 3 font options: Quicksand, Hyperlegible, and OpenDyslexic
  
• Change the font size, and spacing.
  
• Toggle-able sound captions
  
• Toggle off disorienting animations
  
• Dark Mode UI

Meet the protagonist of the story, Valerie, and the friends she meets on her mission to protect the world from the Nightmare Agency!

Mature Content Description

The developers describe the content like this:

This visual novel explores topics some readers may find upsetting such as mental health struggles, depression, anxiety, suicidal ideation, and abuse. This story also depicts magic-based violence, blood/injury, and body horror. Adult characters are seen drinking. Some language and crude humor is also present.