A young girl and three sunny boys, swimming in the river of love and the sea of love, whether it is friendship or love, gratitude or true love, and what is the ending between them...
Duan Rumin is an innocent and pure young girl. She once thought she liked Shu Zhengling, her childhood sweetheart, so she made a promise to meet in college eight years later. Later, due to the relocation, she met the cold and arrogant Song Sufeng, and they fell in love with each other for a long time. She thought she liked Song Sufeng. At the last moment when she was preparing to study abroad, Song Sufeng gave her another vow to wait for her when she came back. During the three years of studying in the United States, she had not forgotten the agreement she made eight years ago, let alone Sufeng's promise three years ago. However, Zhang Shao, who had been with her day and night for three years, fell in love with her all over again! What should she do, and who will she choose in the end...