There were four girls in the photo including Wu Fangfang. One of the girls clinging tightly to Wu Fangfang had her face scratched out by a knife. This photo belonged to Wu Fangfang, so she must have been the one who scratched out the girl's face. Thinking about it, it was obvious Wu Fangfang had something against this girl. Tsk, tsk. Recalling his interactions with Wu Fangfang, Zhao Yu realized it'd be stranger if she didn't have conflicts due to how bad her temper was.
To go as far as damaging the photo, Wu Fangfang must really have had a vendetta against this girl! If she didn't want to see the girl in the image, wouldn't it have been easier to just destroy it completely? If someone had flipped through the album, wouldn't it have been awkward?
Zhao Yu flipped through the rest of the album with some doubts hovering in his mind. After looking through a few pages, he discovered many faces had been scratched and defaced with a penknife.