Kyung-Yoon's personal life is also given priority, with his girlfriend asking to break up with him, saying that he loves someone else and called their name when drunk.

A month prior to their discharge, they were transferred to another base along with a third man named Jong Ha.

However, their investigation has only led them to Kyung-Yoon's old friend, Yoon-Suh, who was in the same military base and shot himself.

Kyung-Yoon protected Yoon-Suh from bullies but eventually stopped when he got into a fight and got beaten up.

He does not apologize and instead makes light of it and laughs, which drives Kyung-Yoon mad, and he gets into a scuffle with them.

Later, Kyung-Yoon is seen bruised, and Eun-Ju calls him, saying Jung Ho was found dead.

Lee-Hye Soo calls Kyung Yoon tearfully and tells him that everything was her fault.

It is revealed that Eun-Ju knew Kyung-Yoon killed Jung-Ho as she retrieved his lighter from the crime scene.