Mayuni Awayuki is the eldest daughter of the wealthy Natsue Awayuki.
Mayune holds a pretentious attitude toward Himeno for coming from an impoverished family. Mayune often plays practical jokes to demean Himeno, including tampering with the dining room chairs and setting traps throughout the mansion grounds.
- Mayune falls for various Leafe Knights throughout the anime, but they always manage to escape before she can seduce them.
- Even though Mayune appears to dislike Himeno, she is the first to grieve about Himeno's death.