To be honest, Lee Minju was always a bother in his life as long as Seungmin remembers. Ever since he was a child, Minju has always been there as his neighbor, the daughter of his mom's best friend, and his loud and clumsy friend, the polar opposite of his quiet, smart, and aloof self. What's more? She is a parasite and mostly loves to see him suffer. Everything Minju does intentionally or unintentionally, screams trouble for Seungmin. However, fate has other plans.