My Childhood Friend and Naughty Business Made My Grades Go Up?! Sora, raised under a controlling mother, enters Korea University's medical school as her mother wished. However, she feels increasingly helpless as she realizes she's falling behind her brilliant peers. Then, she accidentally witnesses a classmate's secret sexual encounter, and a series of events begin to shake up Sora's daily life. With the sudden appearance of her childhood friend, Chanhee, and a mysterious, seemingly perfect senior, Sora wonders, "This isn't what I imagined university life would be like...?!!" This is the cheeky and bold romantic comedy that engulfs Sora, a freshman at Korea University.