I have really bad luck with books

I decided I would start getting final blow, and passing the book final blow 20 was a pain in the ass T_T. Firstly it was a rare book, so I borrowed 2 off matze (shengo) and failed both of them...



I found someone selling final blow 20 for 50m, and failed that too. After 3 fails, the 4th one finally worked. Found the 4th one at bonefishes with my bishop.