Season 2 - Episode Guide

Yoo Han was kidnapped trying to protect Yun Woo.  Yun Woo has made it his mission to search for Yoo Han and for clues about his mother as well. 

Yi Rang opens up to the possibility of Yun Woo investigating the disappearances.  Yun Woo has a strange dream where a mysterious girl speaks to him about "probe surgery".  

Yun Woo attends a funeral on his aunt's behalf, but when he arrives he discovers the deceased is the girl who appeared in his dream.  She also happens to be the little sister of Se Hyun, Yun Woo's classmate and new friend. 

Se Hyun asks to stay with Yun Woo for a few days after they spoke at the funeral.  Se Hyun suggests they shouldn't be apart, so that he can protect Yun Woo from any danger. 

Yun Woo and Se Hyun discover that Se Hyun's sister spent time at a secret bar where monos gather. 

Yun Woo and Se Hyun investigate the candy factory where Se Hyun's sister was promised probe surgery in exchange for her labor. 

Yun Woo and Se Hyun discover the truth behind the failing probe surgeries and push back against the con-artists behind the scheme. 

Yi Rang solves the mystery of her missing sister.