The song was used as the ending theme song of the 1999 season of the NTV cultural documentary series Do You Really Know About It?! (知ってるつもり?!, Shitteru Tsumori?!). The B-side, "Taiyō no Kisetsu", was used by Japan Post for its commercials. Both songs were co-written by Oginome, which was a first in her singles discography.
"We'll be Together" peaked at No. 83 on Oricon's singles chart and sold over 3,000 copies, becoming Oginome's last new single to appear on any singles charts.[3]