ok so I read this manga quite a while ago up to the part where the story switches to Senya as the main char, then I took a break from it for a while, now I want to continue but even though I remember most of the characters and story, I can't remember Senya's origins clearly, so I'd appreciate it if someone gave me Seya backstory until chapter 36 where he wakes up in that village with the samurai guy.

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