I really enjoyed the anime TV series and despite its various shortcomings, I liked story and concept elements of the reworked story in the anime movie... but New Fist of the North Star OVA parts 1-3 left me with a really bad taste. I'm no FOTNS buff, but whether this OVA is based upon an original novel or not, the characterization and actions are unbelievable.
The characters of Sara, Toby, Sanga and Seigi (sp?) all twist and change by the end and through flashbacks to become (at least for me) very hard to like. Sara is your typical wimpy anime woman, crying and going on about moral guff even in defense of someone who raped her and brutally murdered dozens of innocents by his own hand, and gave orders that led to the death of countless more. Toby goes completely insane, and the transition to insanity is not given enough time to be a believable jump. Sanga's insanity and treatment of his son is somehow acceptable at the end by everyone, when conveniently the Aunt of Seigi (sp?) shows up. Everything is contrived by the end and nothing is satisfactorily concluded.
This story is a waste of Kenshiro (the star character) who normally is one of the few characters out there in any anime/show/manga, that will deliver final justice to those that truly deserve it. I eagerly look forward to his death dealing to those villains that the story builds up, as very few other shows allow their star to step out of the politically correct 'life-sparing' frame of mind. The end of this OVA robs the viewer of seeing a despicable villain being killed at Kenshiro's hands, and leaves us with his own rape victim in tears mourning him.
Overall the whole thing, melodramatic and violent as Fist of the North Star is, could not be upheld by the characterization. I wasted my money on this. If you really want to see Fist of the North Star, I advise finding the original series. For me, my whole interest in Fist of the North Star has been destroyed.