A past that no one believes, a future that's impossible; the lives of the nerima crew twelve years afterward are very different from what anyone ever imagined...
After Ranma's death, Nabiki has done well with her life. Everything is going great until one day 12 years on, she catches a glimpse of almost incandescent red hair. 12 years ago, Ranma died in a duel with Yuki Tanakawa, taking her with him, but who was that? Nabiki has to find out. And in a certain apartment, a girl lives with her husband, both of them having found such happiness together that they were willing to give everything up to be with each other.