Yeonaeneun Jeonjaeng!

Two siblings, Lee Si-Yeon and Lee Si-Eon, have been rivals since childhood, with the older twin often prevailing in their ongoing conflicts. Their competition extends to personal matters, including relationships. When Si-Eon attempts to challenge his sister by pursuing their classmate, Seo Tae-Hyeon, a bet is made: whoever succeeds in getting Tae-Hyeon to ask them out first wins. However, Tae-Hyeon's hidden trauma complicates the situation, making the outcome uncertain. The stakes are high, as the loser must leave school, their home, and avoid the winner permanently. As the twins manipulate and uncover each other's private lives, the emotional toll raises questions about whether anyone will truly emerge victorious.