He'll love him in any lifetime.
Neil isn't a ghost, but he feels like one. Reincarnated with all his memories from his prior life, he spent twenty years trapped in a child's body, wanting nothing more than to grow up and reclaim the love of his life.
As an adult, Neil finds there's more than lost time separating them. Joshua has built a beautiful life since Neil's death, and how exactly is Neil supposed to introduce himself? As Joshua's long-dead lover in a new body? Heartbroken and hopeless, Neil takes refuge in his work, developing microscopic robots called nanites that can produce medical miracles.
When Joshua meets a young scientist working on a medical project, his soul senses something his rational mind can't believe. Has Neil truly come back to him after twenty years? And if the impossible is real, can they be together at long last?