Ou-Sama Ni Sasagu Kusuriyubi
Other titles :
为国王献上无名指 (Chinese), 王様に捧ぐ薬指 (Japanese), Ousama ni Sasagu Kusuriyubi, The third finger offered to a king (English)
Author(s) :Watanabe Shiho
From ShoujoHearts: Ayaka, who works at the Bridal department at a hotel, has a beauty that everyone recognizes, yet her personality is the worst. Everyone calls her a "wicked woman" after the way she wraps numerous men around her finger. The one who sets his eyes on her is the hotel's new executive Tougou, who is the son of a very powerful person of the town. What are the orders that this King-like man requests of her!?