.Hera planet, 4443 A. D. After a long time of enduring resentment and cold attitude from his partner, later experiencing bankruptcy, Cheng Jin finally decides to let him go. However, as if it's destiny, his lover suddenly lost his memories and fell in love with Cheng Jin. Cheng Jin was overjoyed, but at the same time anguished as he anxiously awaits for this love's "limited time" to arrive.