Majo Rumika no Akai Ito

A class rep Haneda Kotoya was tackled suddenly from the back, and trampled really hard. "Wha..!? What the hell?", just as he thought that a girl smiles unfittingly and says "Finally I found a man who really loves me."

Since then the girl, Kirima Rumika, would come and trample him no matter what. Not just that, while she says, "this a...