Hmm... Four Gem Crystals with a Card Suits. What does this mean?

I'll give you hints:
- They're sisters
- They are part Darkner/Lightners due to the crystal's influenced and bloodline
- They're even Quadruplets
- They're Princesses and future rulers of the Four Different Suit Kingdoms in both worlds
- They're Magical Girls
- The yellow crystal (Spade) is a Citrine and uses Earth Powers (The Eldest); the flower is a Sunflower
- The green crystal (Clubs) is a Emerald and uses Wind Powers (Second Eldest); the flower is a White Lily
- The blue crystal (Diamond) is a Sapphire and uses Water Powers (First Youngest); the flower is a Purple Iris
- The pink crystal (Heart) is a Ruby and uses Fire Powers (Second Youngest); the flower is a Pink Rose
- Their mother is a Queen of the Magi (who became a Walpurgis Witch in original timeline), their father is a cyborg
- This series will take place in the epic crossover that the series I enjoyed a lot.
- Their birthday's are on October 1st, which where the Kannazuki, "the godless month," in the traditional Japanese lunar calendar takes place.
- Their Zodiac is Libra

Enjoy!