Given name:
Family name: 結城
Birthday: Unknown
Member Favorites: 3
(Note first name is Ryo not Ryoh per authors website and manga covers. See image of Sheila's Diary)

From the Publisher:
Yuuki Ryoh is known for her deft ability to draw very beautiful and seductive female characters. Rumor has it that the reason the author can draw female characters so life- like and gorgeous, is because the author herself is very beautiful and she is often able to get inspiration from just looking at herself in the mirror!