Going in the Wrong Direction삐뚤어질테다 (Korean)

Ten years is enough time for a childhood friend to completely change- Baek Sumi, a leader of the neighborhood kids at a young age, protected her small and weak friend Kang Hwon from the other kids. However, at the high school entrance ceremony, the two met again as complete opposites! All the students are scared of Hwon’s power, and it’s coming back to Baek Sumi’s ordinary high school life...