Elfin Mint

Elfin Mint is the Extra Stage boss of the fanmade Touhou game The Last Comer. She has a familiar name Zankurou who is the princess of her old love interest, Hades.

History
Elfin was a nymph who was turned into a weed by Persephone out of anger. She lost all her faith afterwards, thinking she would soon disappear, but an unexpected person in the form of Hades saved her, causing her to turn into a mint for trying to seduce him, and her flower form gained popularity for is pleasing scent amongst the people. When Hades moved to a place within the distant sea of stars, Elfin longed to see him once more, spreading her seeds that were constantly reproduced with herself to propagate her descendants across the world, bringing forth countless fragrances delighting humans for the sake of her goal. When she returned to the realm of the dead, she realized that Hades had already left, but didn't want to be forgotten.

The Last Comer
When the morning star crash landed in the forest near the Hakurei Shrine, Elfin followed the star, not realizing that the star's face was covered with the same flower that was her "namesake" before being consumed by fire. Once in Gensokyo, she decided to fill it with mint plants to calm down the residents of Gensokyo who had been visited by Mumumu Mikaboshi and the angels that had followed her there to begin a battle between angels and demons in Gensokyo. Incidentally, it was Elfin's master plan that brought about the attention of heroines Reimu, Marisa, and Sakuya to her.

Appearance
Elfin has red eyes, blue hair, and pointy ears. She wears a fuchsia headband with two larger ribbons attached to the sides, as well as a fuchsia string around her neck. She has a light green and white dress with a fuchsia belt and matching bands around the ends of her sleeves. She doesn’t wear shoes, but she has two silver bracelets around her left ankle as well as two more on her right wrist. Elfin has four white, angular wings, portions of which seem to float separate from her body. Accompanying Elfin is a small, spherical, light red creature with a scowling face, two bat wings, and tall hair.

Trivia

 * Elfin Mint is a fairy based on Menthe, a Greek nymph who was transformed into a mint plant for trying to seduce Hades.
 * Elfin means “like an elf”, relating to part of her race, but can also mean “small” or “mischievous”, matching the typical description of fairies in Gensokyo. Mint is an aromatic plant commonly used as an herb.