Saiya is an energetic earth pony with a pastel yellow coat, platinum blonde mane and sapphire blue eyes that lives in Everfree Forest studying the medicinal and magical properties of the plants there. He lives by himself singing and dancing in the forest as he forages potion-making ingredients and spends much time alone there, but he is quite friendly with strangers and appreciates visitors who make the long trek to visit him.

He enjoys presenting as male and female on different days, often confusing ponies who go searching the forest for his expertise. Sometimes Saiya engages in lighthearted mischief giving those looking for him directions to go in circles in the forest leading straight back to him.

Though he is incapable of using magic, he is quite adept at mixing ingredients and creating powerful potions with magical effects. Some rumor he can even create transformation potions but he refuses to create such things due to how dangerous they are and how much trouble they could cause falling into the wrong hands.