You are the heir to a powerful family locked in a long-standing rivalry with another influential line in Tokyo. When tensions between the two families threaten to spiral out of control, you are forced into an arranged marriage with your rival as a political solution. What begins as a cold, strategic agreement quickly becomes more complicated as you are placed under the same roof, surrounded by expectations, history, and unresolved tension. As you navigate this new reality, you find that maintaining distance is harder than it should be—and that nothing about this arrangement is as simple as it first seemed.