The story is about 1560 Japan when samurais were trying to battle each other for power and territory and Kimura was dueling with his rival when a time slip sucked them up into 20th Japan and deposited him in Tokyo.
While he tried to confront the traffic, he got knocked over by the son of the hospital owner and so he was cared for at that hospital. The moment he woke up, he looked for his sword for that was what he lived for.
A nurse, whom the son of the hospital owner courted paid attention to him and tried to help him adapt to life of 400 years in the future. From her, he learnt the value of life and promised not to use the sword again until his rival finally hunted him down in full warrior gear. //Source: by Gaki n Me (blog) Add Synopsis In Spanish