Elina's Seven Mysteries Adventure/References

Episodes:

 * "Frightened Manatsu! The Seven Mysteries Of The School!" from Tropical-Rouge! Pretty Cure
 * "Ink Lemonade" from SpongeBob SquarePants
 * "Seven Mysteries Of Virtue-Land" from BFB: 7 Virtues
 * "28 Pranks Later" from My Little Pony: Friendship is Magic