Kang Wei and Yang Guiyi were close friends. They were three years apart, and their mothers were growing up. However, an accident took away Yang Guiyi's parents. Life was a long journey. Yang Guiyi and Kang Wei were separated when they were young. When they met again after many years, their relationship eventually deteriorated, and Yang Guiyi was no longer the younger brother called "Brother Kang Wei".
Intention: because of a dream