May Queen Episode 12

Kang San finds out that Hae Joo and Chang Hee have been dating and admits to her that he likes her. Afterwards, he becomes cold towards her at work. Chang Hee's father tries to bribe Hae Joo's mother, who then goes to meet Chang Hee. Chang Hee and Hae Joo go on a date. Later, they find the man who kidnapped Hae Joo as a child. Chang Hee interrogates him and finds out his dad was involved. Kang San sees Chang Hee's father treat Hae Joo badly and tells Chang Hee to give up Hae Joo.