Read Furyou Taimashi Reina Manga:
Reina Suzuno, a transfer student with a sukujan, blonde hair and loose socks totally looks like a criminal. Is Reina Suzuno a stalker? It turns out that Reina is not a stalker, she is actually an exorcist - an excellent exorcist - and her intimidating behavior is actually a unique method of exorcism which exterminates the evil spirits that roam the earth.