Dami

I remember reading a manga where there's a bunch of delinquents and the mc's sister almost gets kidnapped because she was famous but I think either the mc or the ml saves her. This is set in a high school setting

Only thing I remember about it is the mc being gangraped by a bunch of dudes, getting pissed on by them while also being recorded. Then, he killed them one by one I think as revenge. I don't really know, that's all I remember, does anyone know it?