Sakura Sugai

Represents the Hungry Ghosts Realm, is the sister of Hinata, and has the incredible ability to eat anything without ever feeling satisfied and without changing her appearance. Also has some political skills, as she is the president of the student council of the High School the group attends. Her love of politics seems based in a joy of enforcing the rules. She also has her own internet site, "Dr. Sakura," where she berates she calls "hopeless" in what some might consider an attempt to help them - though she obviously gets a good deal of sadistic enjoyment out of ridiculing their complaints. (The anime suggests that she herself might qualify as a "hopeless" person).

She seems to pull Ikkou into doing extra work for her own (or her sister's) convenience, or for the temple. All in all, she is a sadistic character, but she is not without concern for other people, and is especially attached to her younger sister, Hinata. [Wikipedia]