Doesn't Japan have left-hand traffic? It was the guy's fault for walking incorrectly next to the wall on the right, whereas the girl was properly next to the wall on the left nearing the corner. So, basically, the guy was the culprit but used psychological pressure to falsely make the girl feel guilty. He's a simple scumbag. For this reason the whole oneshot was totally meaningless for me. It was basically first one, then two, and then three guys bullying the girl. If the initial setting had been reversed, with the girl being in the wrong, then this manga would have been reasonable.