Gaussian Blur

Day after day, honor student Hwang Dong Wook gets called out by the bullies in his class to serve as their punching bag. Day after day, the last-ranked student Choi Yool is shunned by her classmates because of her beauty and her grades. As it happens, the sullen boy and the carefree girl sit next to each other in class. When the top student is asked to lure her into the bullies dirty schemes, their lives take an unexpected turn…
From mangaupdates