You Never Say You Love Me" is a science fiction romance set in a newly restarted universe after a catastrophic Android-Robot War. The story follows Toni and Rina, the "Children of the Stars" and offspring of immortal "New Angels," as they are tasked by the advanced AI Perfect AR to explore love and passion in order to build a more perfect universe. Traveling in their living spaceship Serendipity, they interact with various species, including living machines and humans, and conduct social experiments on planets like Andarchivan and Saturn. The narrative explores themes of love, hate, passion, and the evolution of societies, as Toni and Rina struggle to understand their own feelings and relationships. Their journey culminates on Earth, where they seek to experience true love and passion, ultimately questioning the nature of immortality, freedom, and what it means to be truly alive and connected.Later new love affairs between mortals and immortals., machines and humans are developed: Rina and Jimmy., Toni and Ta ., Robot2 and the fabricated human Serendipity.A more perfect universe could finally be formed based on love and passion. The concept of "Cupids" is born.