Detectives Chu Ja-young and Kim Dong-wook are investigating a string of murders involving local high school students. Scraps of a diary are found with each victim, leading the detectives to suspect the writer of the diary, a middle-school student who’s suffered serious bullying. Each murder happens just as described in the so-called ‘June diary’, but the student is already dead…

* Sin Eun-kyeong (신은경)
* Kim Yoon-jin (김윤진)
* Eric Moon (에릭)
* Yoon Joo-sang (윤주상)
* Jeon Hanssen (전헌태)
* Woo Joon-yeong (우준영)
* Lee Yo-seob (이요섭)