24 parts Complete Childhood best friends Jeon Jungkook and Ryu Haerin were promised to each other by their families. Separated when Jungkook is sent to the USA for education, Haerin becomes a renowned jewelry designer, patiently waiting for his return while secretly in love with him. In America, Jungkook has his girlfriend, Grace
Returning to Korea years later, Jungkook is reminded of his promise to Haerin. Torn between his commitment to Grace and his childhood bond with Haerin, he struggles to make the right choice. The reunion sparks intense emotions and unspoken feelings, culminating in a heartfelt journey of love, duty, and the power of enduring promises.