Bright acoustic V-pop duet with male/female vocals trading lines; gentle shuffle groove with picked guitar, đàn tranh flourishes, and warm upright bass. Verses stay light and nostalgic, using call-and-response; chorus blooms with stacked harmonies, subtle pad, and brushed snare for a breezy, romantic lift. Bridge strips back to guitar and soft percussion, then final chorus returns bigger with ad-libs and melodic echoes.