Salon Diana
サロン・ディアーナ
Arisue Rio values appearance above all else and tells this to male nail technician Irima Yoshitsuki. He places a special, cursed gem on her nails and warns that if she kisses a boy she doesn't like, time will reverse. Rio dismisses the warning, but when a charming younger student confesses to her, they begin dating and eventually kiss. After the kiss, time reverts to the day before.
