Forever and Ever follows the poignant romance between top voice actor Shi Yi and chemistry professor Zhou Sheng Chen. Having retained faint memories of a tragic past-life romance from centuries before, Shi Yi instantly recognizes Zhou Sheng Chen when they cross paths at an airport, though he has no recollection of their shared history. As Shi Yi enters his life, Zhou Sheng Chen faces intense pressure from his traditional, complex aristocratic family, who expect him to take over the family business and navigate dangerous internal power struggles. Despite the formidable obstacles erected by his relatives and the intricate web of corporate intrigue, Shi Yi stands steadfastly by Zhou Sheng Chen's side. Through mutual trust, quiet dedication, and gentle warmth, she helps him dismantle the family's outdated structures while risking her own safety against malicious plots. Their journey is a deeply emotional exploration of devotion, patience, and a love powerful enough to transcend time itself.