Saekom-Dalkom plot
"Did you think it would stay sweet forever? Then why is it so sour?"
Jang-hyuk has a romantic relationship with nurse Da-eun. They met when Jang-hyuk was in hospital with hepatitis. When they first started dating, Jang-hyuk was a sweet friend, but not anymore. Jang-hyuk has become healthier and has been transferred as a temp to a large architectural firm in Seoul, where he competes for a permanent position with a female colleague. The long distance between Jang-hyuk and Da-eun creates tension and they slowly start to grow apart.