Cheese in the Trap (2016)

This drama series shows the delicate relationship between a female university student Hong Seol (Kim Go-Eun) and her senior Yoo Jung (Park Hae-Jin). Hong-Seol works a part-time job since her household is poor. Yoo Jung is perfect with good academics and athletics plus he is kind. However, he also seems to have a dark side about him with some people holding grudges over him...