At a provincial convent school, Tokyo and Blue fall in love, unaware that they are the youngest daughters of two rival crime families locked in a generations-long feud. As both clans battle for control of the city's economy, their forbidden romance becomes increasingly dangerous. When Blue's cousin accidentally kills Tokyo's older brother, the conflict erupts into a deadly cycle of revenge. Refusing to inherit their families' hatred, Blue plans to escape the city with Tokyo and leave the violence behind. Can their first love survive generations of bloodshed and finally break the cycle of hate?