Princess Annelise of the North is obsessed with gardening and forms a bond with the prince of the Southern Kingdom through flowers and plants. Setting aside court intrigue, the two draw slowly closer through seeds, flowers, and letters across the changing seasons. They study plant cultivation together, exchange botanical specimens, and cross the distance between their lands, feelings growing with flowers and trees as their medium. There is no grand, dramatic turmoil — in the quiet time of waiting for flowers to bloom, they forge a gentle, restrained, enduring romantic bond.