Love Is War!

Fraternal twins Lee Si-Yeon and Lee Si-Eon have been locked in bitter rivalry since childhood. The older sister, Si-Yeon, has consistently dominated their lifelong competition, taking everything her brother ever cherished—from his toys to his girlfriends. Driven by years of frustration, Si-Eon finally sees an opportunity to turn the tables when he discovers the person who has captured his sister’s heart: their classmate Seo Tae-Hyeon. He challenges Si-Yeon to a high-stakes wager, declaring that he can get Tae-Hyeon to confess his feelings first. What begins as a sibling feud quickly escalates into a ruthless battle for affection, with the ultimate price being total exile. The loser must drop out of school, leave their home, and never appear before the winner again. Although gender might normally dictate the outcome of such a contest, Tae-Hyeon harbors a traumatic secret that renders him completely unpredictable, leveling the playing field entirely. Unless he confronts his painful past, neither twin holds a clear advantage. As both siblings manipulate emotions and invade one another's private lives to secure victory, the lines between strategy and genuine feeling blur, leaving it uncertain whether anyone will truly emerge unscathed from this war.