Keina Kagami relies on life support for a period, only to awaken in the virtual reality universe of Leadale, the game she loves. As her high-level character, Cayna, she is reincarnated, but she soon realizes that the game has evolved since the last time she played, two centuries ago. Cayna remains undeterred, eagerly anticipating a fresh adventure that presents new prospects and opportunities to encounter unfamiliar characters.