Whyenie was school student . Jungkook was professor and Whyenie best friend Jiyeon brother. Whyenie and jungkook are in relationship. Taehyung was Whyenie brother as he also professor . Whyenie; Jiyeon your didn't informed me that he going to work in our school. Jiyeon: he didn't even told me. Jungkook pulled Whyenie into his cabin and kissed her.