Yulje is undergoing a massive personnel change. Residents, fellows, interns and doctors are being transfered between Gangseo and Jongno branches for efficient outcome. What happens when Oh Yi-young, Kim Sa-bi, Um Jae-il and Pyo Nam-kyung are caught amidst this chaos? What happens when a new R2 Lee Jang-mi enters their life? Will their second year be better? Or is it going to be another run-away season? Inspired by the k-drama 'Resident Playbook', this story will be revolving around the four residents from the drama with a slice of life continuing from the story Lifelines Together! New characters will be introduced periodically. Please read Lifelines together before starting this book!