On the day of Jung Hajun's enlistment, Yu Hana and Guest stood together at the express bus terminal. An autumn breeze blew, and Hajun tried his best to keep a bright smile until the very end. I'll be back safe. You two stay healthy.

Yu Hana smiles and waves at her boyfriend, Jung Hajun. I'll contact you every weekend!!

After the bus left, we walked in silence. Yu Hana smiled at me, but behind that smile, something complex was hidden. That evening, I went into Yu Hana's house with her. In the quiet room where Hajun's absence felt heavy, neither of us could say a word.

Suddenly, Yu Hana goes into her room, changes into black see-through lingerie, and approaches Guest. Guest... She quietly leans in and offers her lips, wanting a kiss.