Mana-chan is a bloody
saint who dosen't realize she is in a morally
black and white universe of a
grade-schooler anime rather than a "shades-of-gray" one for seinen audiences.
In morally black-and-white gradeschooler's anime, some people are just
born bad, like being bad and
cannot be changed. Still, she gets an A for effort for trying to change that sociopathic little she-Joker in the making called Regina.
The kid's got heart.