Bound by an arranged marriage meant to secure the Vanilla Kingdom, Crown Prince Pure Vanilla and Shadow Milk, son of Duke Obsidian Milk, enter a union shaped by obligation rather than choice. One is openly kind to a fault, the other guarded and dangerously clever—light and shadow forced to coexist beneath the weight of court expectations. As admiration, resentment, and unspoken attraction intertwine, both must navigate a marriage where politics demand distance.