Unscramble 21

Hi, how are you? It's Allie, a guest poster! Things will be a little different from me. I won't be able to post Sunday, Mon., Wed., and Friday.
Before you start, please look at the rules above! :D
You only get 3 hints (dunno about Ita-chan and other Guest posters).
"If you win, I will let you know via ‘reply’ in the comment box. Please make sure you clearly indicate what characters and such you would like on your prize."
Thank you and enjoys~! Good luck ;3

UnScramble: ORUY KAHAAYSA

Prize: 1 wallpaper request

Hint #1 : from a Romance, School, Shoujo one-shot manga.
Hint #2 : Her house is called "School House."
Hint #3 : Authors: Chiba, Kozue

Closed.
Winner: lhtkid
Answer: Hayasaka, Yoru from Yoru no Gakkou e Oide Yo! (Manga)

End