Jyazu (sometimes spelled Jazu) is the final boss of Kizuna Encounter: Super Tag Battle.
Jyazu is an enigmatic warrior, who was a former member of the Jaguar terrorist group, having betrayed them after killing Kazu, also a member of Jaguar.
His true motivations are a mystery.
Mezu and Gozu, Kazu's brothers, initially believed that King Lion was the one responsible for their brother's death, so they entered the Battle of the Beast God tournament to avenge him.
When King Leo is defeated during the second Battle of the Beast God tournament, Jyazu appears in crow form and steals King Leo's sword, using it to kill King Leo for good. He then changes back to his human form and challenges the tournament winners.
It is unknown what happened of him after the fight.
Fatal Fury/Garou: Mark of the Wolves
The Last Blade
Savage Reign/Kizuna Encounter