Yagami Sayuri is the student council vice president, and her demanding
president hates the fact that boys are in their school at all. There is a
school legend that if a maiden offers her panties to the goddess statue
in the courtyard, the goddess will help solve her problems. The actual
problem-solving power, though, is with the student council, which
monitors the statue's panty offerings.
The president often
insists Sayuri help solve the girls' problems in her secret identity of
"Mystic Heart," a scantily clad protector of the school's peace. Most of
the students just think of 'Mystic Heart' as a masochistic pervert.
Sayuri usually ends up naked and humiliated in front of boys, and the
shame helps her transform into her sadistic personality. In this form,
she can beat up the boys and pee on them. The student council helps
girls through many troubles, from misunderstandings between friends to
peeping toms.