In the Kim mansion, power is inherited, but peace is impossible.
Two families live under the same roof, bound by blood yet divided by ambition. Riku Maeda, the only son of the Maeda chairman, raises his gifted son under ruthless standards while navigating a volatile marriage with Kim Daeyoung, heir of the KS Group. Their constant clashes with Sion and his husband Yushi ignite endless tension, with every meal turning into a battlefield and every success fueling envy.
Between scheming parents, a doting yet manipulative grandfather, and children crushed beneath impossible expectations, the mansion becomes a stage for obsession, betrayal, and rivalry. Talented Sakuya shines under pressure, while gentle Ryo is punished for failing to measure up, mirroring the very struggle between their fathers.
In a world where love is conditional and family is a weapon, every relationship is a war, and survival means choosing between loyalty and freedom.