The rarest 6 "Hokuto ou Ken" books from Hong Kong (in Chinese: Beidou Wangquan). Have been released by Long Cheng Feng Publishers and written by the "Hokuto Ouken Production Team" between 1991 and 1992. They have been banned from distribution anywhere by the HK government because this is an unauthorized release, and when anything is banned it's confiscated from stores.
This picture does not appear in the 6 books that I have, infact this is an advertisement and characters information that was inside another comic in that time (EASTERN INVINCIBLE, I think) from the same publishing company.
LITTLE SUMMARY. It starts out with Wu Tian (Rei Copy) who tries to stop the
army of Lei Ao (Raou copy). He fails just as Rei did only
Lei Ao blasts a whole through Wu and destroys his whole
army in a Touki wave.
The story moves on to show our hero Kenjirou (Jian Si Lang)
which roughly translates to "Second Son of Fist". The
Chinese names were written to correspond to their Japanese
pronuctiation so they sound similar to the original titles:
Hokuto Ou Ken = Hokuto no Ken,
Kenjirou = Kenshirou.
It shows that Kenjirou had a son, Kenkouten (Jian Xiao
Tian) which roughly translates to "Fist of the Roaring
Heaven". Kenkouten had the spirit of Toki. Kenjirou moves
on to fight Lei Ao, and then some characters who I don't
know the name for who resemble Falco and Kaiou. There's
even a second Rei copy character only with white hair (Wu
Tian had black hair) and not only is this character a rip
off of Rei, he also has claws like Wolverine of X-Men.
Probably the coolest part in the
whole series is when Kenjirou engraves seven scars into his
son using seven fingers so his son would have the same
marks. Kenjirou defeats the Kaiou lookalike by having
energy fire down from the Hokuto Shichisei stars in the
sky. Seven energy blasts fire down in the shape of Hokuto
Shichisei to destroy the Kaiou lookalike. This looks really
cool since the shape of Hokuto Shichisei is seen shooting
through a thick cloud of pollution.
Rei Gaiden Volume 6 August 8th
Comic Bunch #36-37 Souten no Ken & Jagi Gaiden (last chapter)