kim hongjoong is kept awake night after night due to his noisy neighbor and his constant one-night stands.
alternatively: hongjoong and seonghwa both have their own internal struggles - what happens when their paths cross?
Hongjoong.
Seonghwa.
Two quite contrasting individuals.
Hongjoong hates Seonghwa, the smartass.
Seonghwa hates Hongjoong, the pessimistic prick.
Unfortunate circumstances bring the two together.